Add self-sign certs support

2026-10-19 22:20:36 +00:00 · 2025-11-22 00:33:30 -03:00
parent 1233ff8a5f
commit 933830e17e
20 changed files with 1085 additions and 135 deletions
@@ -67,6 +67,12 @@ export const certificateEstV3ServiceFactory = ({
      throw new BadRequestError({ message: "EST enrollment not configured for this profile" });
    }

+    if (!profile.caId) {
+      throw new BadRequestError({
+        message: "Self-signed certificates are not supported for EST enrollment"
+      });
+    }
+
    const estConfig = await estEnrollmentConfigDAL.findById(profile.estConfigId);
    if (!estConfig) {
      throw new NotFoundError({ message: "EST configuration not found" });
@@ -169,6 +175,12 @@ export const certificateEstV3ServiceFactory = ({
      throw new BadRequestError({ message: "EST enrollment not configured for this profile" });
    }

+    if (!profile.caId) {
+      throw new BadRequestError({
+        message: "Self-signed certificates are not supported for EST enrollment"
+      });
+    }
+
    const estConfig = await estEnrollmentConfigDAL.findById(profile.estConfigId);
    if (!estConfig) {
      throw new NotFoundError({ message: "EST configuration not found" });
@@ -281,6 +293,12 @@ export const certificateEstV3ServiceFactory = ({
      throw new BadRequestError({ message: "EST enrollment not configured for this profile" });
    }

+    if (!profile.caId) {
+      throw new BadRequestError({
+        message: "Self-signed certificates are not supported for EST enrollment"
+      });
+    }
+
    const estConfig = await estEnrollmentConfigDAL.findById(profile.estConfigId);
    if (!estConfig) {
      throw new NotFoundError({ message: "EST configuration not found" });
@@ -7,6 +7,7 @@ import { ormify, selectAllTableCols } from "@app/lib/knex";

 import {
  EnrollmentType,
+  IssuerType,
  TCertificateProfile,
  TCertificateProfileCertificate,
  TCertificateProfileInsert,
@@ -198,6 +199,7 @@ export const certificateProfileDALFactory = (db: TDbClient) => {
        slug: result.slug,
        description: result.description,
        enrollmentType: result.enrollmentType as EnrollmentType,
+        issuerType: result.issuerType as IssuerType,
        estConfigId: result.estConfigId,
        apiConfigId: result.apiConfigId,
        acmeConfigId: result.acmeConfigId,
@@ -239,12 +241,13 @@ export const certificateProfileDALFactory = (db: TDbClient) => {
      limit?: number;
      search?: string;
      enrollmentType?: EnrollmentType;
+      issuerType?: IssuerType;
      caId?: string;
    } = {},
    tx?: Knex
  ): Promise<TCertificateProfile[] | TCertificateProfileWithConfigs[]> => {
    try {
-      const { offset = 0, limit = 20, search, enrollmentType, caId } = options;
+      const { offset = 0, limit = 20, search, enrollmentType, issuerType, caId } = options;

      let baseQuery = (tx || db)(TableName.PkiCertificateProfile).where(
        `${TableName.PkiCertificateProfile}.projectId`,
@@ -269,6 +272,10 @@ export const certificateProfileDALFactory = (db: TDbClient) => {
        baseQuery = baseQuery.where(`${TableName.PkiCertificateProfile}.caId`, caId);
      }

+      if (issuerType) {
+        baseQuery = baseQuery.where(`${TableName.PkiCertificateProfile}.issuerType`, issuerType);
+      }
+
      const query = baseQuery
        .leftJoin(
          TableName.PkiEstEnrollmentConfig,
@@ -338,8 +345,10 @@ export const certificateProfileDALFactory = (db: TDbClient) => {
          slug: result.slug,
          description: result.description,
          enrollmentType: result.enrollmentType as EnrollmentType,
+          issuerType: result.issuerType as IssuerType,
          estConfigId: result.estConfigId,
          apiConfigId: result.apiConfigId,
+          acmeConfigId: result.acmeConfigId,
          createdAt: result.createdAt,
          updatedAt: result.updatedAt,
          estConfig,
@@ -359,12 +368,13 @@ export const certificateProfileDALFactory = (db: TDbClient) => {
    options: {
      search?: string;
      enrollmentType?: EnrollmentType;
+      issuerType?: IssuerType;
      caId?: string;
    } = {},
    tx?: Knex
  ): Promise<number> => {
    try {
-      const { search, enrollmentType, caId } = options;
+      const { search, enrollmentType, issuerType, caId } = options;

      let query = (tx || db)(TableName.PkiCertificateProfile).where({ projectId });

@@ -384,6 +394,10 @@ export const certificateProfileDALFactory = (db: TDbClient) => {
        query = query.where({ caId });
      }

+      if (issuerType) {
+        query = query.where({ issuerType });
+      }
+
      const result = await query.count("*").first();
      return parseInt((result as unknown as { count: string }).count || "0", 10);
    } catch (error) {
@@ -1,12 +1,17 @@
 import RE2 from "re2";
 import { z } from "zod";

-import { EnrollmentType } from "./certificate-profile-types";
+import { CertStatus } from "../certificate/certificate-types";
+import { EnrollmentType, IssuerType } from "./certificate-profile-types";

 export const createCertificateProfileSchema = z
  .object({
    projectId: z.string().uuid("Project ID must be valid"),
-    caId: z.string().uuid(),
+    caId: z
+      .union([z.string().uuid(), z.literal("")])
+      .optional()
+      .nullable()
+      .transform((val) => (val === "" ? null : val)),
    certificateTemplateId: z.string().uuid(),
    slug: z
      .string()
@@ -15,6 +20,7 @@ export const createCertificateProfileSchema = z
      .regex(new RE2("^[a-z0-9-]+$"), "Slug must contain only lowercase letters, numbers, and hyphens"),
    description: z.string().max(1000).optional(),
    enrollmentType: z.nativeEnum(EnrollmentType),
+    issuerType: z.nativeEnum(IssuerType).default(IssuerType.CA),
    estConfig: z
      .object({
        disableBootstrapCaValidation: z.boolean().default(false),
@@ -32,6 +38,7 @@ export const createCertificateProfileSchema = z
  })
  .refine(
    (data) => {
+      // Validate enrollment type configurations
      if (data.enrollmentType === EnrollmentType.EST) {
        if (!data.estConfig) {
          return false;
@@ -65,11 +72,26 @@ export const createCertificateProfileSchema = z
          return false;
        }
      }
+
+      if (data.issuerType === IssuerType.CA) {
+        if (!data.caId) {
+          return false;
+        }
+      }
+      if (data.issuerType === IssuerType.SELF_SIGNED) {
+        if (data.caId) {
+          return false;
+        }
+        if (data.enrollmentType !== EnrollmentType.API) {
+          return false;
+        }
+      }
+
      return true;
    },
    {
      message:
-        "EST enrollment type requires EST configuration and cannot have API configuration. API enrollment type requires API configuration and cannot have EST configuration."
+        "EST enrollment type requires EST configuration and cannot have API configuration. API enrollment type requires API configuration and cannot have EST configuration. CA issuer type requires a CA ID. Self-signed issuer type cannot have a CA ID and only supports API enrollment."
    }
  );

@@ -83,6 +105,7 @@ export const updateCertificateProfileSchema = z
      .optional(),
    description: z.string().max(1000).optional(),
    enrollmentType: z.nativeEnum(EnrollmentType).optional(),
+    issuerType: z.nativeEnum(IssuerType).optional(),
    estConfig: z
      .object({
        disableBootstrapCaValidation: z.boolean().default(false),
@@ -109,10 +132,18 @@ export const updateCertificateProfileSchema = z
          return false;
        }
      }
+
+      if (data.issuerType === IssuerType.SELF_SIGNED) {
+        if (data.enrollmentType && data.enrollmentType !== EnrollmentType.API) {
+          return false;
+        }
+      }
+
      return true;
    },
    {
-      message: "Cannot have EST config with API enrollment type or API config with EST enrollment type."
+      message:
+        "Cannot have EST config with API enrollment type or API config with EST enrollment type. Self-signed issuer type only supports API enrollment."
    }
  );

@@ -131,6 +162,7 @@ export const listCertificateProfilesSchema = z.object({
  limit: z.coerce.number().min(1).max(100).default(20),
  search: z.string().optional(),
  enrollmentType: z.nativeEnum(EnrollmentType).optional(),
+  issuerType: z.nativeEnum(IssuerType).optional(),
  caId: z.string().uuid().optional()
 });

@@ -142,6 +174,6 @@ export const listCertificatesByProfileSchema = z.object({
  profileId: z.string().uuid(),
  offset: z.coerce.number().min(0).default(0),
  limit: z.coerce.number().min(1).max(100).default(20),
-  status: z.enum(["active", "expired", "revoked"]).optional(),
+  status: z.nativeEnum(CertStatus).optional(),
  search: z.string().optional()
 });
@@ -22,7 +22,12 @@ import type { TKmsServiceFactory } from "../kms/kms-service";
 import type { TProjectDALFactory } from "../project/project-dal";
 import type { TCertificateProfileDALFactory } from "./certificate-profile-dal";
 import { certificateProfileServiceFactory, TCertificateProfileServiceFactory } from "./certificate-profile-service";
-import { EnrollmentType, TCertificateProfile, TCertificateProfileWithConfigs } from "./certificate-profile-types";
+import {
+  EnrollmentType,
+  IssuerType,
+  TCertificateProfile,
+  TCertificateProfileWithConfigs
+} from "./certificate-profile-types";

 vi.mock("@app/lib/crypto/cryptography", () => ({
  crypto: {
@@ -90,6 +95,7 @@ describe("CertificateProfileService", () => {
    description: "Test certificate profile",
    slug: "test-profile",
    enrollmentType: EnrollmentType.API,
+    issuerType: IssuerType.CA,
    caId: "ca-123",
    certificateTemplateId: "template-123",
    apiConfigId: "api-config-123",
@@ -272,6 +278,7 @@ describe("CertificateProfileService", () => {
      slug: "new-profile",
      description: "New test profile",
      enrollmentType: EnrollmentType.API,
+      issuerType: IssuerType.CA,
      caId: "ca-123",
      certificateTemplateId: "template-123",
      apiConfig: {
@@ -312,6 +319,7 @@ describe("CertificateProfileService", () => {
          slug: "new-profile",
          description: "New test profile",
          enrollmentType: EnrollmentType.API,
+          issuerType: IssuerType.CA,
          caId: "ca-123",
          certificateTemplateId: "template-123",
          apiConfigId: "api-config-123",
@@ -383,6 +391,7 @@ describe("CertificateProfileService", () => {
        slug: "invalid-profile",
        description: "Invalid test profile",
        enrollmentType: EnrollmentType.API,
+        issuerType: IssuerType.CA,
        caId: "ca-123",
        certificateTemplateId: "template-123"
      };
@@ -401,6 +410,7 @@ describe("CertificateProfileService", () => {
        slug: "api-profile",
        description: "Profile with API enrollment",
        enrollmentType: EnrollmentType.API,
+        issuerType: IssuerType.CA,
        caId: "ca-123",
        certificateTemplateId: "template-123",
        apiConfig: {
@@ -726,6 +736,7 @@ describe("CertificateProfileService", () => {
          slug: "est-profile",
          description: "Profile with EST enrollment",
          enrollmentType: EnrollmentType.EST,
+          issuerType: IssuerType.CA,
          caId: "ca-123",
          certificateTemplateId: "template-123",
          estConfig: {
@@ -776,6 +787,7 @@ describe("CertificateProfileService", () => {
          slug: "different-profile-name",
          description: "Profile with duplicate slug",
          enrollmentType: EnrollmentType.API,
+          issuerType: IssuerType.CA,
          caId: "ca-123",
          certificateTemplateId: "template-123",
          apiConfig: {
@@ -801,6 +813,7 @@ describe("CertificateProfileService", () => {
          slug: "auto-renew-profile",
          description: "Profile with auto-renewal",
          enrollmentType: EnrollmentType.API,
+          issuerType: IssuerType.CA,
          caId: "ca-123",
          certificateTemplateId: "template-123",
          apiConfig: {
@@ -965,6 +978,7 @@ describe("CertificateProfileService", () => {
          slug: "invalid-template-profile",
          description: "Profile with invalid template",
          enrollmentType: EnrollmentType.API,
+          issuerType: IssuerType.CA,
          caId: "ca-123",
          certificateTemplateId: "nonexistent-template",
          apiConfig: {
@@ -990,6 +1004,7 @@ describe("CertificateProfileService", () => {
          slug: "concurrent-profile",
          description: "Profile created concurrently",
          enrollmentType: EnrollmentType.API,
+          issuerType: IssuerType.CA,
          caId: "ca-123",
          certificateTemplateId: "template-123",
          apiConfig: {
@@ -1018,6 +1033,7 @@ describe("CertificateProfileService", () => {
          slug: "cross-project-profile",
          description: "Profile using template from different project",
          enrollmentType: EnrollmentType.API,
+          issuerType: IssuerType.CA,
          caId: "ca-123",
          certificateTemplateId: "template-456",
          apiConfig: {
@@ -1047,6 +1063,7 @@ describe("CertificateProfileService", () => {
          slug: "invalid-slug-profile",
          description: "Profile with invalid slug format",
          enrollmentType: EnrollmentType.API,
+          issuerType: IssuerType.CA,
          caId: "ca-123",
          certificateTemplateId: "template-123",
          apiConfig: {
@@ -32,6 +32,7 @@ import { getProjectKmsCertificateKeyId } from "../project/project-fns";
 import { TCertificateProfileDALFactory } from "./certificate-profile-dal";
 import {
  EnrollmentType,
+  IssuerType,
  TCertificateProfile,
  TCertificateProfileCertificate,
  TCertificateProfileInsert,
@@ -39,6 +40,34 @@ import {
  TCertificateProfileWithConfigs
 } from "./certificate-profile-types";

+const validateIssuerTypeConstraints = (
+  issuerType: IssuerType,
+  enrollmentType: EnrollmentType,
+  caId: string | null,
+  existingCaId?: string | null
+) => {
+  if (issuerType === IssuerType.CA) {
+    if (!caId && !existingCaId) {
+      throw new ForbiddenRequestError({
+        message: "CA issuer type requires a Certificate Authority to be selected"
+      });
+    }
+  }
+
+  if (issuerType === IssuerType.SELF_SIGNED) {
+    if (caId) {
+      throw new ForbiddenRequestError({
+        message: "Self-signed issuer type cannot have a Certificate Authority"
+      });
+    }
+    if (enrollmentType !== EnrollmentType.API) {
+      throw new ForbiddenRequestError({
+        message: "Self-signed issuer type only supports API enrollment"
+      });
+    }
+  }
+};
+
 const generateAndEncryptAcmeEabSecret = async (
  projectId: string,
  kmsService: Pick<TKmsServiceFactory, "generateKmsKey" | "encryptWithKmsKey">,
@@ -163,7 +192,8 @@ export type TCertificateProfileServiceFactory = ReturnType<typeof certificatePro
 const convertDalToService = (dalResult: Record<string, unknown>): TCertificateProfile => {
  return {
    ...dalResult,
-    enrollmentType: dalResult.enrollmentType as EnrollmentType
+    enrollmentType: dalResult.enrollmentType as EnrollmentType,
+    issuerType: dalResult.issuerType as IssuerType
  } as TCertificateProfile;
 };

@@ -240,6 +270,8 @@ export const certificateProfileServiceFactory = ({
      });
    }

+    validateIssuerTypeConstraints(data.issuerType, data.enrollmentType, data.caId ?? null);
+
    // Validate enrollment configuration requirements
    if (data.enrollmentType === EnrollmentType.EST && !data.estConfig) {
      throw new ForbiddenRequestError({
@@ -376,7 +408,18 @@ export const certificateProfileServiceFactory = ({
      }
    }

-    const { estConfig, apiConfig, ...profileUpdateData } = data;
+    const finalIssuerType = data.issuerType || existingProfile.issuerType;
+    const finalEnrollmentType = data.enrollmentType || existingProfile.enrollmentType;
+    const finalCaId = data.caId !== undefined ? data.caId : existingProfile.caId;
+
+    validateIssuerTypeConstraints(finalIssuerType, finalEnrollmentType, finalCaId ?? null, existingProfile.caId);
+
+    const updatedData =
+      finalIssuerType === IssuerType.SELF_SIGNED && existingProfile.caId && data.issuerType === IssuerType.SELF_SIGNED
+        ? { ...data, caId: null }
+        : data;
+
+    const { estConfig, apiConfig, ...profileUpdateData } = updatedData;

    const updatedProfile = await certificateProfileDAL.transaction(async (tx) => {
      if (estConfig && existingProfile.estConfigId) {
@@ -569,6 +612,7 @@ export const certificateProfileServiceFactory = ({
    limit = 20,
    search,
    enrollmentType,
+    issuerType,
    caId
  }: {
    actor: ActorType;
@@ -580,6 +624,7 @@ export const certificateProfileServiceFactory = ({
    limit?: number;
    search?: string;
    enrollmentType?: EnrollmentType;
+    issuerType?: IssuerType;
    caId?: string;
  }): Promise<{
    profiles: TCertificateProfileWithConfigs[];
@@ -603,12 +648,14 @@ export const certificateProfileServiceFactory = ({
      limit,
      search,
      enrollmentType,
+      issuerType,
      caId
    });

    const totalCount = await certificateProfileDAL.countByProjectId(projectId, {
      search,
      enrollmentType,
+      issuerType,
      caId
    });

@@ -10,16 +10,24 @@ export enum EnrollmentType {
  ACME = "acme"
 }

-export type TCertificateProfile = Omit<TPkiCertificateProfiles, "enrollmentType"> & {
+export enum IssuerType {
+  CA = "ca",
+  SELF_SIGNED = "self-signed"
+}
+
+export type TCertificateProfile = Omit<TPkiCertificateProfiles, "enrollmentType" | "issuerType"> & {
  enrollmentType: EnrollmentType;
+  issuerType: IssuerType;
 };

-export type TCertificateProfileInsert = Omit<TPkiCertificateProfilesInsert, "enrollmentType"> & {
+export type TCertificateProfileInsert = Omit<TPkiCertificateProfilesInsert, "enrollmentType" | "issuerType"> & {
  enrollmentType: EnrollmentType;
+  issuerType: IssuerType;
 };

-export type TCertificateProfileUpdate = Omit<TPkiCertificateProfilesUpdate, "enrollmentType"> & {
+export type TCertificateProfileUpdate = Omit<TPkiCertificateProfilesUpdate, "enrollmentType" | "issuerType"> & {
  enrollmentType?: EnrollmentType;
+  issuerType?: IssuerType;
  estConfig?: {
    disableBootstrapCaValidation?: boolean;
    passphrase?: string;
@@ -22,7 +22,7 @@ import {
  CertSubjectAttributeType
 } from "@app/services/certificate-common/certificate-constants";
 import { TCertificateProfileDALFactory } from "@app/services/certificate-profile/certificate-profile-dal";
-import { EnrollmentType } from "@app/services/certificate-profile/certificate-profile-types";
+import { EnrollmentType, IssuerType } from "@app/services/certificate-profile/certificate-profile-types";
 import { TCertificateTemplateV2ServiceFactory } from "@app/services/certificate-template-v2/certificate-template-v2-service";

 import { ActorType, AuthMethod } from "../auth/auth-type";
@@ -40,18 +40,29 @@ vi.mock("../certificate-common/certificate-csr-utils", () => ({
 describe("CertificateV3Service", () => {
  let service: TCertificateV3ServiceFactory;

-  const mockCertificateDAL: Pick<TCertificateDALFactory, "findOne" | "findById" | "updateById" | "transaction"> = {
+  const mockCertificateDAL: Pick<
+    TCertificateDALFactory,
+    "findOne" | "findById" | "updateById" | "transaction" | "create"
+  > = {
    findOne: vi.fn(),
    findById: vi.fn(),
    updateById: vi.fn(),
+    create: vi.fn().mockResolvedValue({
+      id: "new-cert-id",
+      serialNumber: "123456789",
+      friendlyName: "Test Certificate",
+      commonName: "test.example.com",
+      status: "ACTIVE"
+    }),
    transaction: vi.fn().mockImplementation(async (callback: (tx: any) => Promise<unknown>) => {
      const mockTx = {};
      return callback(mockTx);
    })
  };

-  const mockCertificateSecretDAL: Pick<TCertificateSecretDALFactory, "findOne"> = {
-    findOne: vi.fn()
+  const mockCertificateSecretDAL: Pick<TCertificateSecretDALFactory, "findOne" | "create"> = {
+    findOne: vi.fn(),
+    create: vi.fn()
  };

  const mockCertificateAuthorityDAL: Pick<TCertificateAuthorityDALFactory, "findByIdWithAssociatedCa"> = {
@@ -150,7 +161,24 @@ describe("CertificateV3Service", () => {
      },
      pkiSyncQueue: {
        queuePkiSyncSyncCertificatesById: vi.fn().mockResolvedValue(undefined)
-      }
+      },
+      certificateBodyDAL: {
+        create: vi.fn().mockResolvedValue({ id: "body-123" })
+      },
+      kmsService: {
+        generateKmsKey: vi.fn().mockResolvedValue("kms-key-123"),
+        encryptWithKmsKey: vi.fn().mockResolvedValue(vi.fn().mockResolvedValue(Buffer.from("encrypted"))),
+        decryptWithKmsKey: vi.fn().mockResolvedValue(vi.fn().mockResolvedValue(Buffer.from("decrypted")))
+      },
+      projectDAL: {
+        findOne: vi.fn().mockResolvedValue({ id: "project-123" }),
+        findById: vi.fn().mockResolvedValue({ id: "project-123" }),
+        updateById: vi.fn().mockResolvedValue({ id: "project-123" }),
+        transaction: vi.fn().mockImplementation(async (callback: (tx: any) => Promise<unknown>) => {
+          const mockTx = {};
+          return callback(mockTx);
+        })
+      } as any
    });
  });

@@ -175,6 +203,7 @@ describe("CertificateV3Service", () => {
        id: profileId,
        projectId: "project-123",
        enrollmentType: EnrollmentType.API,
+        issuerType: IssuerType.CA,
        caId: "ca-123",
        certificateTemplateId: "template-123",
        createdAt: new Date(),
@@ -319,6 +348,7 @@ describe("CertificateV3Service", () => {
        id: profileId,
        projectId: "project-123",
        enrollmentType: EnrollmentType.API,
+        issuerType: IssuerType.CA,
        caId: "ca-123",
        certificateTemplateId: "template-123",
        createdAt: new Date(),
@@ -508,6 +538,7 @@ describe("CertificateV3Service", () => {
        id: profileId,
        projectId: "project-123",
        enrollmentType: EnrollmentType.EST, // Wrong enrollment type
+        issuerType: IssuerType.CA,
        caId: "ca-123",
        certificateTemplateId: "template-123",
        createdAt: new Date(),
@@ -561,6 +592,7 @@ describe("CertificateV3Service", () => {
        id: profileId,
        projectId: "project-123",
        enrollmentType: EnrollmentType.API,
+        issuerType: IssuerType.CA,
        caId: "ca-123",
        certificateTemplateId: "template-123",
        createdAt: new Date(),
@@ -721,6 +753,7 @@ describe("CertificateV3Service", () => {
        id: profileId,
        projectId: "project-123",
        enrollmentType: EnrollmentType.EST, // Wrong enrollment type
+        issuerType: IssuerType.CA,
        caId: "ca-123",
        certificateTemplateId: "template-123",
        createdAt: new Date(),
@@ -772,6 +805,7 @@ describe("CertificateV3Service", () => {
        id: profileId,
        projectId: "project-123",
        enrollmentType: EnrollmentType.API,
+        issuerType: IssuerType.CA,
        caId: "ca-123",
        certificateTemplateId: "template-123",
        createdAt: new Date(),
@@ -933,6 +967,7 @@ describe("CertificateV3Service", () => {
        id: profileId,
        projectId: "project-123",
        enrollmentType: EnrollmentType.EST, // Wrong enrollment type
+        issuerType: IssuerType.CA,
        caId: "ca-123",
        certificateTemplateId: "template-123",
        createdAt: new Date(),
@@ -971,6 +1006,7 @@ describe("CertificateV3Service", () => {
      caId: "ca-1",
      certificateTemplateId: "template-1",
      enrollmentType: EnrollmentType.API,
+      issuerType: IssuerType.CA,
      createdAt: new Date(),
      updatedAt: new Date(),
      description: "Test profile for algorithm compatibility",
@@ -1552,6 +1588,7 @@ describe("CertificateV3Service", () => {
      id: "profile-123",
      projectId: "project-123",
      enrollmentType: EnrollmentType.API,
+      issuerType: IssuerType.CA,
      caId: "ca-123",
      certificateTemplateId: "template-123",
      apiConfig: {
@@ -1733,9 +1770,9 @@ describe("CertificateV3Service", () => {
      });
    });

-    it("should reject renewal if certificate is not from a profile", async () => {
-      const certWithoutProfile = { ...mockOriginalCert, profileId: null };
-      vi.mocked(mockCertificateDAL.findById).mockResolvedValue(certWithoutProfile);
+    it("should reject renewal if certificate has no profile and no CA", async () => {
+      const certWithoutProfileAndCA = { ...mockOriginalCert, profileId: null, caId: null };
+      vi.mocked(mockCertificateDAL.findById).mockResolvedValue(certWithoutProfileAndCA);

      // Set up transaction mock to properly handle errors
      vi.mocked(mockCertificateDAL.transaction).mockImplementation(async (callback: (tx: any) => Promise<unknown>) => {
@@ -1755,7 +1792,7 @@ describe("CertificateV3Service", () => {
          certificateId: "cert-123",
          ...mockActor
        })
-      ).rejects.toThrow("Only certificates issued from a profile can be renewed");
+      ).rejects.toThrow("Only certificates issued from a profile or self-signed certificates can be renewed");
    });

    it("should reject renewal if certificate was issued from CSR (external private key)", async () => {
@@ -1989,6 +2026,44 @@ describe("CertificateV3Service", () => {

      expect(result).toHaveProperty("certificate", "renewed-cert");
    });
+
+    it("should successfully renew self-signed certificate", async () => {
+      // Self-signed certificate has no caId and no profileId
+      const selfSignedCert = {
+        ...mockOriginalCert,
+        profileId: null,
+        certificateTemplateId: null,
+        caId: null
+      };
+
+      vi.mocked(mockCertificateDAL.findById).mockResolvedValue(selfSignedCert);
+      vi.mocked(mockCertificateAuthorityDAL.findByIdWithAssociatedCa).mockResolvedValue(mockCA);
+      vi.mocked(mockCertificateSecretDAL.findOne).mockResolvedValue({ id: "secret-123", certId: "cert-123" } as any);
+      vi.mocked(mockCertificateTemplateV2Service.getTemplateV2ById).mockResolvedValue(mockTemplate);
+
+      const newCert = {
+        ...selfSignedCert,
+        id: "cert-456",
+        serialNumber: "self-signed-789012"
+      };
+      vi.mocked(mockCertificateDAL.create).mockResolvedValue(newCert);
+      vi.mocked(mockCertificateDAL.findOne).mockResolvedValue(newCert);
+      vi.mocked(mockCertificateDAL.updateById).mockResolvedValue(newCert);
+
+      // Set up transaction mock
+      vi.mocked(mockCertificateDAL.transaction).mockImplementation(async (callback: (tx: any) => Promise<unknown>) => {
+        const mockTx = {};
+        return callback(mockTx);
+      });
+
+      const result = await service.renewCertificate({
+        certificateId: "cert-123",
+        ...mockActor
+      });
+
+      expect(result).toHaveProperty("certificate");
+      expect(result).toHaveProperty("serialNumber");
+    });
  });

  describe("updateRenewalConfig", () => {
@@ -2008,6 +2083,7 @@ describe("CertificateV3Service", () => {
      const mockProfile = {
        id: "profile-123",
        enrollmentType: EnrollmentType.API,
+        issuerType: IssuerType.CA,
        projectId: "project-123"
      };

@@ -2084,6 +2160,7 @@ describe("CertificateV3Service", () => {
      const mockProfile = {
        id: "profile-123",
        enrollmentType: EnrollmentType.API,
+        issuerType: IssuerType.CA,
        projectId: "project-123"
      };

@@ -2129,6 +2206,7 @@ describe("CertificateV3Service", () => {
      const mockProfile = {
        id: "profile-123",
        enrollmentType: EnrollmentType.API,
+        issuerType: IssuerType.CA,
        projectId: "project-123"
      };

@@ -2172,6 +2250,7 @@ describe("CertificateV3Service", () => {
      const mockProfile = {
        id: "profile-123",
        enrollmentType: EnrollmentType.API,
+        issuerType: IssuerType.CA,
        projectId: "project-123"
      };

@@ -1,8 +1,9 @@
 import { ForbiddenError } from "@casl/ability";
+import * as x509 from "@peculiar/x509";
 import { randomUUID } from "crypto";
 import RE2 from "re2";

-import { ActionProjectType } from "@app/db/schemas";
+import { ActionProjectType, TCertificates } from "@app/db/schemas";
 import { TPermissionServiceFactory } from "@app/ee/services/permission/permission-service-types";
 import {
  ProjectPermissionCertificateActions,
@@ -10,8 +11,11 @@ import {
  ProjectPermissionSub
 } from "@app/ee/services/permission/project-permission";
 import { TPkiAcmeAccountDALFactory } from "@app/ee/services/pki-acme/pki-acme-account-dal";
+import { crypto } from "@app/lib/crypto/cryptography";
 import { BadRequestError, ForbiddenRequestError, NotFoundError } from "@app/lib/errors";
+import { ms } from "@app/lib/ms";
 import { ActorAuthMethod, ActorType } from "@app/services/auth/auth-type";
+import { TCertificateBodyDALFactory } from "@app/services/certificate/certificate-body-dal";
 import { TCertificateDALFactory } from "@app/services/certificate/certificate-dal";
 import { TCertificateSecretDALFactory } from "@app/services/certificate/certificate-secret-dal";
 import {
@@ -28,12 +32,25 @@ import {
  TCertificateAuthorityWithAssociatedCa
 } from "@app/services/certificate-authority/certificate-authority-dal";
 import { CaStatus, CaType } from "@app/services/certificate-authority/certificate-authority-enums";
+import {
+  createDistinguishedName,
+  createSerialNumber,
+  keyAlgorithmToAlgCfg,
+  signatureAlgorithmToAlgCfg
+} from "@app/services/certificate-authority/certificate-authority-fns";
 import { TInternalCertificateAuthorityServiceFactory } from "@app/services/certificate-authority/internal/internal-certificate-authority-service";
 import { TCertificateProfileDALFactory } from "@app/services/certificate-profile/certificate-profile-dal";
-import { EnrollmentType } from "@app/services/certificate-profile/certificate-profile-types";
+import { EnrollmentType, IssuerType } from "@app/services/certificate-profile/certificate-profile-types";
 import { TCertificateTemplateV2ServiceFactory } from "@app/services/certificate-template-v2/certificate-template-v2-service";
+import { TKmsServiceFactory } from "@app/services/kms/kms-service";
+import { TProjectDALFactory } from "@app/services/project/project-dal";
+import { getProjectKmsCertificateKeyId } from "@app/services/project/project-fns";

-import { CertSubjectAlternativeNameType } from "../certificate-common/certificate-constants";
+import {
+  CertExtendedKeyUsageType,
+  CertKeyUsageType,
+  CertSubjectAlternativeNameType
+} from "../certificate-common/certificate-constants";
 import {
  extractAlgorithmsFromCSR,
  extractCertificateRequestFromCSR
@@ -68,8 +85,9 @@ import {
 } from "./certificate-v3-types";

 type TCertificateV3ServiceFactoryDep = {
-  certificateDAL: Pick<TCertificateDALFactory, "findOne" | "findById" | "updateById" | "transaction">;
-  certificateSecretDAL: Pick<TCertificateSecretDALFactory, "findOne">;
+  certificateDAL: Pick<TCertificateDALFactory, "findOne" | "findById" | "updateById" | "transaction" | "create">;
+  certificateBodyDAL: Pick<TCertificateBodyDALFactory, "create">;
+  certificateSecretDAL: Pick<TCertificateSecretDALFactory, "findOne" | "create">;
  certificateAuthorityDAL: Pick<TCertificateAuthorityDALFactory, "findByIdWithAssociatedCa">;
  certificateProfileDAL: Pick<TCertificateProfileDALFactory, "findByIdWithConfigs">;
  acmeAccountDAL: Pick<TPkiAcmeAccountDALFactory, "findById">;
@@ -85,6 +103,8 @@ type TCertificateV3ServiceFactoryDep = {
  >;
  pkiSyncDAL: Pick<TPkiSyncDALFactory, "find">;
  pkiSyncQueue: Pick<TPkiSyncQueueFactory, "queuePkiSyncSyncCertificatesById">;
+  kmsService: Pick<TKmsServiceFactory, "generateKmsKey" | "encryptWithKmsKey" | "decryptWithKmsKey">;
+  projectDAL: TProjectDALFactory;
 };

 export type TCertificateV3ServiceFactory = ReturnType<typeof certificateV3ServiceFactory>;
@@ -329,6 +349,141 @@ const parseTtlToDays = (ttl: string): number => {
  }
 };

+const generateSelfSignedCertificate = async ({
+  certificateRequest,
+  template,
+  effectiveSignatureAlgorithm,
+  effectiveKeyAlgorithm
+}: {
+  certificateRequest: {
+    commonName?: string;
+    keyUsages?: CertKeyUsageType[];
+    extendedKeyUsages?: CertExtendedKeyUsageType[];
+    altNames?: Array<{
+      type: CertSubjectAlternativeNameType;
+      value: string;
+    }>;
+    validity: { ttl: string };
+    notBefore?: Date;
+    notAfter?: Date;
+  };
+  template?: {
+    subject?: Array<{
+      type: string;
+      allowed?: string[];
+      required?: string[];
+      denied?: string[];
+    }>;
+    sans?: Array<{
+      type: string;
+      allowed?: string[];
+      required?: string[];
+      denied?: string[];
+    }>;
+  } | null;
+  effectiveSignatureAlgorithm: CertSignatureAlgorithm;
+  effectiveKeyAlgorithm: CertKeyAlgorithm;
+}): Promise<{
+  certificate: Buffer;
+  privateKey: Buffer;
+  serialNumber: string;
+  notBefore: Date;
+  notAfter: Date;
+  certificateSubject: Record<string, unknown>;
+  subjectAlternativeNames: Array<{
+    type: CertSubjectAlternativeNameType;
+    value: string;
+  }>;
+}> => {
+  const certificateSubject = buildCertificateSubjectFromTemplate(certificateRequest, template?.subject);
+  const subjectAlternativeNames = buildSubjectAlternativeNamesFromTemplate(
+    { subjectAlternativeNames: certificateRequest.altNames },
+    template?.sans
+  );
+
+  const keyGenAlg = keyAlgorithmToAlgCfg(effectiveKeyAlgorithm);
+  const keyPair = await crypto.nativeCrypto.subtle.generateKey(keyGenAlg, true, ["sign", "verify"]);
+
+  const signatureAlgorithmConfig = signatureAlgorithmToAlgCfg(effectiveSignatureAlgorithm, effectiveKeyAlgorithm);
+
+  const notBeforeDate = certificateRequest.notBefore ? new Date(certificateRequest.notBefore) : new Date();
+  let notAfterDate = new Date(new Date().setFullYear(new Date().getFullYear() + 1));
+  if (certificateRequest.notAfter) {
+    notAfterDate = new Date(certificateRequest.notAfter);
+  } else if (certificateRequest.validity.ttl) {
+    notAfterDate = new Date(new Date().getTime() + ms(certificateRequest.validity.ttl));
+  }
+
+  const serialNumber = createSerialNumber();
+  const dn = createDistinguishedName({
+    commonName: certificateSubject.common_name,
+    organization: certificateSubject.organization,
+    ou: certificateSubject.organizational_unit,
+    country: certificateSubject.country,
+    province: certificateSubject.state_or_province_name,
+    locality: certificateSubject.locality_name
+  });
+
+  const cert = await x509.X509CertificateGenerator.createSelfSigned({
+    name: dn,
+    serialNumber,
+    notBefore: notBeforeDate,
+    notAfter: notAfterDate,
+    signingAlgorithm: signatureAlgorithmConfig,
+    keys: keyPair,
+    extensions: [
+      new x509.BasicConstraintsExtension(false, undefined, false),
+      ...(certificateRequest.keyUsages?.length
+        ? [
+            new x509.KeyUsagesExtension(
+              (convertKeyUsageArrayToLegacy(certificateRequest.keyUsages) || []).reduce(
+                // eslint-disable-next-line no-bitwise
+                (acc: number, usage) => acc | x509.KeyUsageFlags[usage],
+                0
+              ),
+              false
+            )
+          ]
+        : []),
+      ...(certificateRequest.extendedKeyUsages?.length
+        ? [
+            new x509.ExtendedKeyUsageExtension(
+              (convertExtendedKeyUsageArrayToLegacy(certificateRequest.extendedKeyUsages) || []).map(
+                (eku) => x509.ExtendedKeyUsage[eku]
+              ),
+              false
+            )
+          ]
+        : []),
+      ...(subjectAlternativeNames
+        ? [
+            new x509.SubjectAlternativeNameExtension(
+              certificateRequest.altNames?.map((san) => ({
+                type: san.type === CertSubjectAlternativeNameType.DNS_NAME ? "dns" : "ip",
+                value: san.value
+              })) || [],
+              false
+            )
+          ]
+        : [])
+    ]
+  });
+
+  const certificatePem = cert.toString("pem");
+  const privateKeyObj = crypto.nativeCrypto.KeyObject.from(keyPair.privateKey);
+  const privateKeyPem = privateKeyObj.export({ format: "pem", type: "pkcs8" }) as string;
+
+  return {
+    certificate: Buffer.from(certificatePem),
+    privateKey: Buffer.from(privateKeyPem),
+    serialNumber,
+    notBefore: notBeforeDate,
+    notAfter: notAfterDate,
+    certificateSubject,
+    subjectAlternativeNames: certificateRequest.altNames || []
+  };
+};
+
 const calculateFinalRenewBeforeDays = (
  profile: { apiConfig?: { autoRenew?: boolean; renewBeforeDays?: number } },
  ttl: string,
@@ -348,8 +503,248 @@ const calculateFinalRenewBeforeDays = (
  return isValidRenewalTiming(renewBeforeDays, certificateExpiryDate) ? renewBeforeDays : undefined;
 };

+const getEffectiveAlgorithms = (
+  requestSignatureAlgorithm?: CertSignatureAlgorithm,
+  requestKeyAlgorithm?: CertKeyAlgorithm,
+  originalSignatureAlgorithm?: CertSignatureAlgorithm,
+  originalKeyAlgorithm?: CertKeyAlgorithm
+) => {
+  return {
+    signatureAlgorithm: requestSignatureAlgorithm || originalSignatureAlgorithm || CertSignatureAlgorithm.RSA_SHA256,
+    keyAlgorithm: requestKeyAlgorithm || originalKeyAlgorithm || CertKeyAlgorithm.RSA_2048
+  };
+};
+
+const createSelfSignedCertificateRecord = async ({
+  selfSignedResult,
+  certificateRequest,
+  profile,
+  originalCert,
+  certificateDAL,
+  tx,
+  isRenewal = false
+}: {
+  selfSignedResult: Awaited<ReturnType<typeof generateSelfSignedCertificate>>;
+  certificateRequest: {
+    commonName?: string;
+    keyUsages?: CertKeyUsageType[];
+    extendedKeyUsages?: CertExtendedKeyUsageType[];
+  };
+  profile?: { id: string; projectId: string } | null;
+  originalCert?: {
+    id: string;
+    friendlyName?: string | null;
+    commonName?: string | null;
+    projectId: string;
+  };
+  certificateDAL: Pick<TCertificateDALFactory, "create" | "updateById">;
+  tx: Parameters<TCertificateDALFactory["create"]>[1];
+  isRenewal?: boolean;
+}) => {
+  const subjectCommonName =
+    (selfSignedResult.certificateSubject.common_name as string) ||
+    certificateRequest.commonName ||
+    originalCert?.commonName ||
+    (isRenewal ? "Renewed Self-signed Certificate" : "Self-signed Certificate");
+
+  const altNamesList = selfSignedResult.subjectAlternativeNames.map((san) => san.value).join(",");
+
+  const projectId = originalCert?.projectId || profile?.projectId;
+  if (!projectId) {
+    throw new BadRequestError({ message: "Project ID is required for certificate creation" });
+  }
+
+  const baseRecord = {
+    serialNumber: selfSignedResult.serialNumber,
+    friendlyName: originalCert?.friendlyName || subjectCommonName,
+    commonName: subjectCommonName,
+    altNames: altNamesList,
+    status: CertStatus.ACTIVE,
+    notBefore: selfSignedResult.notBefore,
+    notAfter: selfSignedResult.notAfter,
+    projectId,
+    keyUsages: convertKeyUsageArrayToLegacy(certificateRequest.keyUsages) || [],
+    extendedKeyUsages: convertExtendedKeyUsageArrayToLegacy(certificateRequest.extendedKeyUsages) || [],
+    profileId: profile?.id || null
+  };
+
+  const renewalRecord =
+    isRenewal && originalCert
+      ? {
+          renewedFromCertificateId: originalCert.id
+        }
+      : {};
+
+  return certificateDAL.create(
+    {
+      ...baseRecord,
+      ...renewalRecord
+    },
+    tx
+  );
+};
+
+const createEncryptedCertificateData = async ({
+  certificateId,
+  certificate,
+  privateKey,
+  projectId,
+  certificateBodyDAL,
+  certificateSecretDAL,
+  kmsService,
+  projectDAL,
+  tx
+}: {
+  certificateId: string;
+  certificate: Buffer;
+  privateKey: Buffer;
+  projectId: string;
+  certificateBodyDAL: Pick<TCertificateBodyDALFactory, "create">;
+  certificateSecretDAL: Pick<TCertificateSecretDALFactory, "create">;
+  kmsService: Pick<TKmsServiceFactory, "encryptWithKmsKey" | "generateKmsKey">;
+  projectDAL: TProjectDALFactory;
+  tx: Parameters<TCertificateBodyDALFactory["create"]>[1];
+}) => {
+  const certificateManagerKeyId = await getProjectKmsCertificateKeyId({
+    projectId,
+    projectDAL,
+    kmsService
+  });
+
+  const kmsEncryptor = await kmsService.encryptWithKmsKey({ kmsId: certificateManagerKeyId });
+
+  const encryptedCertificate = await kmsEncryptor({
+    plainText: certificate
+  });
+
+  await certificateBodyDAL.create(
+    {
+      certId: certificateId,
+      encryptedCertificate: encryptedCertificate.cipherTextBlob
+    },
+    tx
+  );
+
+  const encryptedPrivateKey = await kmsEncryptor({
+    plainText: privateKey
+  });
+
+  await certificateSecretDAL.create(
+    {
+      certId: certificateId,
+      encryptedPrivateKey: encryptedPrivateKey.cipherTextBlob
+    },
+    tx
+  );
+};
+
+const processSelfSignedCertificate = async ({
+  certificateRequest,
+  template,
+  profile,
+  originalCert,
+  effectiveAlgorithms,
+  certificateDAL,
+  certificateBodyDAL,
+  certificateSecretDAL,
+  kmsService,
+  projectDAL,
+  tx,
+  isRenewal = false
+}: {
+  certificateRequest: {
+    commonName?: string;
+    keyUsages?: CertKeyUsageType[];
+    extendedKeyUsages?: CertExtendedKeyUsageType[];
+    validity: { ttl: string };
+    notBefore?: Date;
+    notAfter?: Date;
+  };
+  template?: {
+    subject?: Array<{
+      type: string;
+      allowed?: string[];
+      required?: string[];
+      denied?: string[];
+    }>;
+    sans?: Array<{
+      type: string;
+      allowed?: string[];
+      required?: string[];
+      denied?: string[];
+    }>;
+  } | null;
+  profile?: { id: string; projectId: string } | null;
+  originalCert?: {
+    id: string;
+    friendlyName?: string | null;
+    commonName?: string | null;
+    projectId: string;
+  };
+  effectiveAlgorithms: {
+    signatureAlgorithm: CertSignatureAlgorithm;
+    keyAlgorithm: CertKeyAlgorithm;
+  };
+  certificateDAL: Pick<TCertificateDALFactory, "create" | "updateById">;
+  certificateBodyDAL: Pick<TCertificateBodyDALFactory, "create">;
+  certificateSecretDAL: Pick<TCertificateSecretDALFactory, "create">;
+  kmsService: Pick<TKmsServiceFactory, "encryptWithKmsKey" | "generateKmsKey">;
+  projectDAL: TProjectDALFactory;
+  tx: Parameters<TCertificateDALFactory["create"]>[1];
+  isRenewal?: boolean;
+}) => {
+  const projectId = originalCert?.projectId || profile?.projectId;
+  if (!projectId) {
+    throw new BadRequestError({ message: "Project ID is required for certificate creation" });
+  }
+
+  const selfSignedResult = await generateSelfSignedCertificate({
+    certificateRequest,
+    template,
+    effectiveSignatureAlgorithm: effectiveAlgorithms.signatureAlgorithm,
+    effectiveKeyAlgorithm: effectiveAlgorithms.keyAlgorithm
+  });
+
+  const certificateData = await createSelfSignedCertificateRecord({
+    selfSignedResult,
+    certificateRequest,
+    profile,
+    originalCert,
+    certificateDAL,
+    tx,
+    isRenewal
+  });
+
+  await certificateDAL.updateById(
+    certificateData.id,
+    {
+      signatureAlgorithm: effectiveAlgorithms.signatureAlgorithm,
+      keyAlgorithm: effectiveAlgorithms.keyAlgorithm
+    },
+    tx
+  );
+
+  await createEncryptedCertificateData({
+    certificateId: certificateData.id,
+    certificate: Buffer.from(selfSignedResult.certificate),
+    privateKey: Buffer.from(selfSignedResult.privateKey),
+    projectId,
+    certificateBodyDAL,
+    certificateSecretDAL,
+    kmsService,
+    projectDAL,
+    tx
+  });
+
+  return {
+    selfSignedResult,
+    certificateData
+  };
+};
+
 export const certificateV3ServiceFactory = ({
  certificateDAL,
+  certificateBodyDAL,
  certificateSecretDAL,
  certificateAuthorityDAL,
  certificateProfileDAL,
@@ -359,7 +754,9 @@ export const certificateV3ServiceFactory = ({
  permissionService,
  certificateSyncDAL,
  pkiSyncDAL,
-  pkiSyncQueue
+  pkiSyncQueue,
+  kmsService,
+  projectDAL
 }: TCertificateV3ServiceFactoryDep) => {
  const issueCertificateFromProfile = async ({
    profileId,
@@ -416,15 +813,6 @@ export const certificateV3ServiceFactory = ({
      });
    }

-    const ca = await certificateAuthorityDAL.findByIdWithAssociatedCa(profile.caId);
-    if (!ca) {
-      throw new NotFoundError({ message: "Certificate Authority not found" });
-    }
-
-    validateCaSupport(ca, "direct certificate issuance");
-
-    validateAlgorithmCompatibility(ca, template);
-
    const effectiveSignatureAlgorithm = certificateRequest.signatureAlgorithm as CertSignatureAlgorithm | undefined;
    const effectiveKeyAlgorithm = certificateRequest.keyAlgorithm as CertKeyAlgorithm | undefined;

@@ -440,12 +828,76 @@ export const certificateV3ServiceFactory = ({
      });
    }

-    const certificateSubject = buildCertificateSubjectFromTemplate(certificateRequest, template.subject);
+    const certificateSubject = buildCertificateSubjectFromTemplate(certificateRequest, template?.subject);
    const subjectAlternativeNames = buildSubjectAlternativeNamesFromTemplate(
      { subjectAlternativeNames: certificateRequest.altNames },
-      template.sans
+      template?.sans
    );

+    const issuerType = profile?.issuerType || (profile?.caId ? IssuerType.CA : IssuerType.SELF_SIGNED);
+
+    if (issuerType === IssuerType.SELF_SIGNED) {
+      const result = await certificateDAL.transaction(async (tx) => {
+        const effectiveAlgorithms = getEffectiveAlgorithms(effectiveSignatureAlgorithm, effectiveKeyAlgorithm);
+
+        return processSelfSignedCertificate({
+          certificateRequest,
+          template,
+          profile,
+          effectiveAlgorithms,
+          certificateDAL,
+          certificateBodyDAL,
+          certificateSecretDAL,
+          kmsService,
+          projectDAL,
+          tx
+        });
+      });
+
+      const { selfSignedResult, certificateData } = result;
+
+      const subjectCommonName =
+        (selfSignedResult.certificateSubject.common_name as string) ||
+        certificateRequest.commonName ||
+        "Self-signed Certificate";
+
+      const finalRenewBeforeDays = calculateFinalRenewBeforeDays(
+        profile,
+        certificateRequest.validity.ttl,
+        selfSignedResult.notAfter
+      );
+
+      if (finalRenewBeforeDays !== undefined) {
+        await certificateDAL.updateById(certificateData.id, {
+          renewBeforeDays: finalRenewBeforeDays
+        });
+      }
+
+      return {
+        certificate: selfSignedResult.certificate.toString("utf8"),
+        issuingCaCertificate: "",
+        certificateChain: selfSignedResult.certificate.toString("utf8"),
+        privateKey: selfSignedResult.privateKey.toString("utf8"),
+        serialNumber: selfSignedResult.serialNumber,
+        certificateId: certificateData.id,
+        projectId: profile.projectId,
+        profileName: profile.slug,
+        commonName: subjectCommonName
+      };
+    }
+
+    if (!profile.caId) {
+      throw new NotFoundError({ message: "Certificate Authority ID not found" });
+    }
+
+    const ca = await certificateAuthorityDAL.findByIdWithAssociatedCa(profile.caId);
+    if (!ca) {
+      throw new NotFoundError({ message: "Certificate Authority not found" });
+    }
+
+    validateCaSupport(ca, "direct certificate issuance");
+    validateAlgorithmCompatibility(ca, template);
+
    const { certificate, certificateChain, issuingCaCertificate, privateKey, serialNumber } =
      await internalCaService.issueCertFromCa({
        caId: ca.id,
@@ -477,10 +929,11 @@ export const certificateV3ServiceFactory = ({
      new Date(cert.notAfter)
    );

-    await certificateDAL.updateById(cert.id, {
-      profileId,
-      renewBeforeDays: finalRenewBeforeDays
-    });
+    const updateData: { profileId: string; renewBeforeDays?: number } = { profileId };
+    if (finalRenewBeforeDays !== undefined) {
+      updateData.renewBeforeDays = finalRenewBeforeDays;
+    }
+    await certificateDAL.updateById(cert.id, updateData);

    let finalCertificateChain = bufferToString(certificateChain);
    if (removeRootsFromChain) {
@@ -525,6 +978,12 @@ export const certificateV3ServiceFactory = ({
      enrollmentType
    );

+    if (!profile.caId) {
+      throw new BadRequestError({
+        message: "Self-signed certificates are not supported for CSR signing"
+      });
+    }
+
    const ca = await certificateAuthorityDAL.findByIdWithAssociatedCa(profile.caId);
    if (!ca) {
      throw new NotFoundError({ message: "Certificate Authority not found" });
@@ -592,10 +1051,11 @@ export const certificateV3ServiceFactory = ({

    const finalRenewBeforeDays = calculateFinalRenewBeforeDays(profile, validity.ttl, new Date(cert.notAfter));

-    await certificateDAL.updateById(cert.id, {
-      profileId,
-      renewBeforeDays: finalRenewBeforeDays
-    });
+    const updateData2: { profileId: string; renewBeforeDays?: number } = { profileId };
+    if (finalRenewBeforeDays !== undefined) {
+      updateData2.renewBeforeDays = finalRenewBeforeDays;
+    }
+    await certificateDAL.updateById(cert.id, updateData2);

    const certificateString = extractCertificateFromBuffer(certificate as unknown as Buffer);
    let certificateChainString = extractCertificateFromBuffer(certificateChain as unknown as Buffer);
@@ -663,6 +1123,12 @@ export const certificateV3ServiceFactory = ({
      });
    }

+    if (!profile.caId) {
+      throw new BadRequestError({
+        message: "Self-signed certificates are not supported for certificate ordering"
+      });
+    }
+
    const ca = await certificateAuthorityDAL.findByIdWithAssociatedCa(profile.caId);
    if (!ca) {
      throw new NotFoundError({ message: "Certificate Authority not found" });
@@ -725,9 +1191,10 @@ export const certificateV3ServiceFactory = ({
        throw new NotFoundError({ message: "Certificate not found" });
      }

-      if (!originalCert.profileId) {
+      const isSelfSigned = !originalCert.profileId && !originalCert.caId && originalCert.certificateTemplateId === null;
+      if (!originalCert.profileId && !originalCert.caId && !isSelfSigned) {
        throw new ForbiddenRequestError({
-          message: "Only certificates issued from a profile can be renewed"
+          message: "Only certificates issued from a profile or self-signed certificates can be renewed"
        });
      }

@@ -741,15 +1208,18 @@ export const certificateV3ServiceFactory = ({
        });
      }

-      const profile = await certificateProfileDAL.findByIdWithConfigs(originalCert.profileId);
-      if (!profile) {
-        throw new NotFoundError({ message: "Certificate profile not found" });
-      }
+      let profile = null;
+      if (originalCert.profileId) {
+        profile = await certificateProfileDAL.findByIdWithConfigs(originalCert.profileId);
+        if (!profile) {
+          throw new NotFoundError({ message: "Certificate profile not found" });
+        }

-      if (profile.enrollmentType !== EnrollmentType.API) {
-        throw new ForbiddenRequestError({
-          message: "Certificate is not eligible for renewal: EST certificates cannot be renewed through this endpoint"
-        });
+        if (profile.enrollmentType !== EnrollmentType.API) {
+          throw new ForbiddenRequestError({
+            message: "Certificate is not eligible for renewal: EST certificates cannot be renewed through this endpoint"
+          });
+        }
      }

      const certificateSecret = await certificateSecretDAL.findOne({ certId: originalCert.id }, tx);
@@ -761,10 +1231,11 @@ export const certificateV3ServiceFactory = ({
      }

      if (!internal) {
+        const projectId = profile?.projectId || originalCert.projectId;
        const { permission } = await permissionService.getProjectPermission({
          actor,
          actorId,
-          projectId: profile.projectId,
+          projectId,
          actorAuthMethod,
          actorOrgId,
          actionProjectType: ActionProjectType.CertificateManager
@@ -776,33 +1247,46 @@ export const certificateV3ServiceFactory = ({
        );
      }

-      const ca = await certificateAuthorityDAL.findByIdWithAssociatedCa(profile.caId);
-      if (!ca) {
-        throw new NotFoundError({ message: "Certificate Authority not found" });
+      const issuerType = profile?.issuerType || (originalCert.caId ? IssuerType.CA : IssuerType.SELF_SIGNED);
+
+      let ca;
+      if (issuerType === IssuerType.CA) {
+        const caId = profile?.caId || originalCert.caId;
+        if (!caId) {
+          throw new NotFoundError({ message: "Certificate Authority ID not found" });
+        }
+
+        ca = await certificateAuthorityDAL.findByIdWithAssociatedCa(caId);
+        if (!ca) {
+          throw new NotFoundError({ message: "Certificate Authority not found" });
+        }
+
+        const eligibilityCheck = validateRenewalEligibility(originalCert, ca);
+        if (!eligibilityCheck.isEligible) {
+          await certificateDAL.updateById(originalCert.id, {
+            renewalError: `Certificate is not eligible for renewal: ${eligibilityCheck.errors.join(", ")}`
+          });
+          throw new BadRequestError({
+            message: `Certificate is not eligible for renewal: ${eligibilityCheck.errors.join(", ")}`
+          });
+        }
+
+        validateCaSupport(ca, "direct certificate issuance");
      }

-      const eligibilityCheck = validateRenewalEligibility(originalCert, ca);
-      if (!eligibilityCheck.isEligible) {
-        await certificateDAL.updateById(originalCert.id, {
-          renewalError: `Certificate is not eligible for renewal: ${eligibilityCheck.errors.join(", ")}`
-        });
-        throw new BadRequestError({
-          message: `Certificate is not eligible for renewal: ${eligibilityCheck.errors.join(", ")}`
-        });
-      }
+      const templateId = profile?.certificateTemplateId || originalCert.certificateTemplateId;
+      const template = templateId
+        ? await certificateTemplateV2Service.getTemplateV2ById({
+            actor,
+            actorId,
+            actorAuthMethod,
+            actorOrgId,
+            templateId,
+            internal
+          })
+        : null;

-      validateCaSupport(ca, "direct certificate issuance");
-
-      const template = await certificateTemplateV2Service.getTemplateV2ById({
-        actor,
-        actorId,
-        actorAuthMethod,
-        actorOrgId,
-        templateId: profile.certificateTemplateId,
-        internal
-      });
-
-      if (!template) {
+      if (!template && profile) {
        throw new NotFoundError({ message: "Certificate template not found for this profile" });
      }

@@ -857,10 +1341,13 @@ export const certificateV3ServiceFactory = ({
        keyAlgorithm: originalCert.keyAlgorithm || undefined
      };

-      const validationResult = await certificateTemplateV2Service.validateCertificateRequest(
-        profile.certificateTemplateId,
-        certificateRequest
-      );
+      let validationResult: { isValid: boolean; errors: string[] } = { isValid: true, errors: [] };
+      if (profile?.certificateTemplateId) {
+        validationResult = await certificateTemplateV2Service.validateCertificateRequest(
+          profile.certificateTemplateId,
+          certificateRequest
+        );
+      }

      if (!validationResult.isValid) {
        await certificateDAL.updateById(originalCert.id, {
@@ -872,14 +1359,28 @@ export const certificateV3ServiceFactory = ({
        });
      }

-      validateAlgorithmCompatibility(ca, template);
      const notBefore = new Date();
      const notAfter = new Date(Date.now() + parseTtlToDays(ttl) * 24 * 60 * 60 * 1000);

-      const finalRenewBeforeDays = calculateFinalRenewBeforeDays(profile, ttl, notAfter);
+      const finalRenewBeforeDays = profile ? calculateFinalRenewBeforeDays(profile, ttl, notAfter) : undefined;

-      const { certificate, certificateChain, issuingCaCertificate, serialNumber } =
-        await internalCaService.issueCertFromCa({
+      let certificate: string;
+      let certificateChain: string;
+      let issuingCaCertificate: string;
+      let serialNumber: string;
+      let newCert: TCertificates;
+
+      if (issuerType === IssuerType.CA) {
+        // CA-signed certificate renewal
+        if (!ca) {
+          throw new NotFoundError({ message: "Certificate Authority not found for CA-signed certificate renewal" });
+        }
+
+        validateAlgorithmCompatibility(ca, {
+          algorithms: template?.algorithms
+        } as { algorithms?: { signature?: string[] } });
+
+        const caResult = await internalCaService.issueCertFromCa({
          caId: ca.id,
          friendlyName: originalCert.friendlyName || originalCert.commonName || "Renewed Certificate",
          commonName: originalCert.commonName || "",
@@ -900,20 +1401,72 @@ export const certificateV3ServiceFactory = ({
          tx
        });

-      const newCert = await certificateDAL.findOne({ serialNumber, caId: ca.id }, tx);
+        certificate = caResult.certificate;
+        certificateChain = caResult.certificateChain;
+        issuingCaCertificate = caResult.issuingCaCertificate;
+        serialNumber = caResult.serialNumber;
+
+        const foundCert = await certificateDAL.findOne({ serialNumber, caId: ca.id }, tx);
+        if (!foundCert) {
+          throw new NotFoundError({ message: "Certificate was signed but could not be found in database" });
+        }
+        newCert = foundCert;
+      } else {
+        // Self-signed certificate renewal
+        const effectiveAlgorithms = getEffectiveAlgorithms(
+          undefined,
+          undefined,
+          originalSignatureAlgorithm,
+          originalKeyAlgorithm
+        );
+
+        const selfSignedRenewalResult = await processSelfSignedCertificate({
+          certificateRequest,
+          template,
+          profile,
+          originalCert,
+          effectiveAlgorithms,
+          certificateDAL,
+          certificateBodyDAL,
+          certificateSecretDAL,
+          kmsService,
+          projectDAL,
+          tx,
+          isRenewal: true
+        });
+
+        certificate = selfSignedRenewalResult.selfSignedResult.certificate.toString("utf8");
+        certificateChain = selfSignedRenewalResult.selfSignedResult.certificate.toString("utf8"); // Self-signed has no chain
+        issuingCaCertificate = ""; // No issuing CA for self-signed
+        serialNumber = selfSignedRenewalResult.selfSignedResult.serialNumber;
+        newCert = selfSignedRenewalResult.certificateData;
+      }
+
      if (!newCert) {
        throw new NotFoundError({ message: "Certificate was signed but could not be found in database" });
      }

-      await certificateDAL.updateById(
-        newCert.id,
-        {
-          profileId: originalCert.profileId,
-          renewBeforeDays: finalRenewBeforeDays,
+      // For self-signed certificates, we already set the renewal data during creation
+      // For CA-signed certificates, we need to set it now
+      if (issuerType === IssuerType.CA) {
+        const renewalUpdateData: {
+          profileId: string | null;
+          renewedFromCertificateId: string;
+          renewBeforeDays?: number;
+        } = {
+          profileId: originalCert.profileId || null,
          renewedFromCertificateId: originalCert.id
-        },
-        tx
-      );
+        };
+
+        if (finalRenewBeforeDays !== undefined) {
+          renewalUpdateData.renewBeforeDays = finalRenewBeforeDays;
+        }
+
+        await certificateDAL.updateById(newCert.id, renewalUpdateData, tx);
+      } else if (finalRenewBeforeDays !== undefined) {
+        // For self-signed certificates, just update the renewBeforeDays if needed
+        await certificateDAL.updateById(newCert.id, { renewBeforeDays: finalRenewBeforeDays }, tx);
+      }

      await certificateDAL.updateById(
        originalCert.id,
@@ -953,8 +1506,8 @@ export const certificateV3ServiceFactory = ({
      certificateChain: finalCertificateChain,
      serialNumber: renewalResult.serialNumber,
      certificateId: renewalResult.newCert.id,
-      projectId: renewalResult.profile.projectId,
-      profileName: renewalResult.profile.slug,
+      projectId: renewalResult.originalCert.projectId,
+      profileName: renewalResult.profile?.slug || "Self-signed Certificate",
      commonName: renewalResult.originalCert.commonName || ""
    };
  };
@@ -309,6 +309,14 @@ export const certificateServiceFactory = ({

    const certBody = await certificateBodyDAL.findOne({ certId: cert.id });

+    if (!certBody) {
+      throw new NotFoundError({ message: "Certificate body not found" });
+    }
+
+    if (!certBody.encryptedCertificate) {
+      throw new BadRequestError({ message: "Certificate data not available" });
+    }
+
    const certificateManagerKeyId = await getProjectKmsCertificateKeyId({
      projectId: cert.projectId,
      projectDAL,
@@ -599,6 +607,14 @@ export const certificateServiceFactory = ({

    const certBody = await certificateBodyDAL.findOne({ certId: cert.id });

+    if (!certBody) {
+      throw new NotFoundError({ message: "Certificate body not found" });
+    }
+
+    if (!certBody.encryptedCertificate) {
+      throw new BadRequestError({ message: "Certificate data not available" });
+    }
+
    const certificateManagerKeyId = await getProjectKmsCertificateKeyId({
      projectId: cert.projectId,
      projectDAL,