diff --git a/backend/src/ee/services/audit-log/audit-log-types.ts b/backend/src/ee/services/audit-log/audit-log-types.ts
index 280fd7142..9bfe149a8 100644
--- a/backend/src/ee/services/audit-log/audit-log-types.ts
+++ b/backend/src/ee/services/audit-log/audit-log-types.ts
@@ -1,3 +1,5 @@
+import { SigningAlgorithm } from "aws-sdk/clients/acmpca";
+
 import {
   TCreateProjectTemplateDTO,
   TUpdateProjectTemplateDTO
@@ -240,6 +242,11 @@ export enum EventType {
   GET_CMEK = "get-cmek",
   CMEK_ENCRYPT = "cmek-encrypt",
   CMEK_DECRYPT = "cmek-decrypt",
+  CMEK_SIGN = "cmek-sign",
+  CMEK_VERIFY = "cmek-verify",
+  CMEK_LIST_SIGNING_ALGORITHMS = "cmek-list-signing-algorithms",
+  CMEK_GET_PUBLIC_KEY = "cmek-get-public-key",
+
   UPDATE_EXTERNAL_GROUP_ORG_ROLE_MAPPINGS = "update-external-group-org-role-mapping",
   GET_EXTERNAL_GROUP_ORG_ROLE_MAPPINGS = "get-external-group-org-role-mapping",
   GET_PROJECT_TEMPLATES = "get-project-templates",
@@ -1946,6 +1953,39 @@ interface CmekDecryptEvent {
   };
 }
 
+interface CmekSignEvent {
+  type: EventType.CMEK_SIGN;
+  metadata: {
+    keyId: string;
+    signingAlgorithm: SigningAlgorithm;
+    signature: string;
+  };
+}
+
+interface CmekVerifyEvent {
+  type: EventType.CMEK_VERIFY;
+  metadata: {
+    keyId: string;
+    signingAlgorithm: SigningAlgorithm;
+    signature: string;
+    signatureValid: boolean;
+  };
+}
+
+interface CmekListSigningAlgorithmsEvent {
+  type: EventType.CMEK_LIST_SIGNING_ALGORITHMS;
+  metadata: {
+    keyId: string;
+  };
+}
+
+interface CmekGetPublicKeyEvent {
+  type: EventType.CMEK_GET_PUBLIC_KEY;
+  metadata: {
+    keyId: string;
+  };
+}
+
 interface GetExternalGroupOrgRoleMappingsEvent {
   type: EventType.GET_EXTERNAL_GROUP_ORG_ROLE_MAPPINGS;
   metadata?: Record<string, never>; // not needed, based off orgId
@@ -2468,6 +2508,10 @@ export type Event =
   | GetCmeksEvent
   | CmekEncryptEvent
   | CmekDecryptEvent
+  | CmekSignEvent
+  | CmekVerifyEvent
+  | CmekListSigningAlgorithmsEvent
+  | CmekGetPublicKeyEvent
   | GetExternalGroupOrgRoleMappingsEvent
   | UpdateExternalGroupOrgRoleMappingsEvent
   | GetProjectTemplatesEvent
diff --git a/backend/src/server/routes/v1/cmek-router.ts b/backend/src/server/routes/v1/cmek-router.ts
index 0ade455ec..8d58fc2e1 100644
--- a/backend/src/server/routes/v1/cmek-router.ts
+++ b/backend/src/server/routes/v1/cmek-router.ts
@@ -433,6 +433,17 @@ export const registerCmekRouter = async (server: FastifyZodProvider) => {
 
       const publicKey = await server.services.cmek.getPublicKey({ keyId }, permission);
 
+      await server.services.auditLog.createAuditLog({
+        ...req.auditLogInfo,
+        orgId: permission.orgId,
+        event: {
+          type: EventType.CMEK_GET_PUBLIC_KEY,
+          metadata: {
+            keyId
+          }
+        }
+      });
+
       return publicKey;
     }
   });
@@ -454,13 +465,23 @@ export const registerCmekRouter = async (server: FastifyZodProvider) => {
         })
       }
     },
+    onRequest: verifyAuth([AuthMode.JWT, AuthMode.IDENTITY_ACCESS_TOKEN]),
     handler: async (req) => {
-      const result = await server.services.cmek.listSigningAlgorithms(
-        {
-          keyId: req.params.keyId
-        },
-        req.permission
-      );
+      const { keyId } = req.params;
+
+      const result = await server.services.cmek.listSigningAlgorithms({ keyId }, req.permission);
+
+      await server.services.auditLog.createAuditLog({
+        ...req.auditLogInfo,
+        orgId: req.permission.orgId,
+        event: {
+          type: EventType.CMEK_LIST_SIGNING_ALGORITHMS,
+          metadata: {
+            keyId
+          }
+        }
+      });
+
       return result;
     }
   });
@@ -508,6 +529,18 @@ export const registerCmekRouter = async (server: FastifyZodProvider) => {
 
       const result = await server.services.cmek.cmekSign({ keyId: inputKeyId, data, signingAlgorithm }, permission);
 
+      await server.services.auditLog.createAuditLog({
+        ...req.auditLogInfo,
+        orgId: permission.orgId,
+        event: {
+          type: EventType.CMEK_SIGN,
+          metadata: {
+            keyId: inputKeyId,
+            signingAlgorithm,
+            signature: result.signature
+          }
+        }
+      });
       return result;
     }
   });
@@ -524,8 +557,28 @@ export const registerCmekRouter = async (server: FastifyZodProvider) => {
         keyId: z.string().uuid().describe(KMS.VERIFY.keyId)
       }),
       body: z.object({
-        data: z.string().describe(KMS.VERIFY.data),
-        signature: z.string().describe(KMS.VERIFY.signature),
+        data: z
+          .string()
+          .superRefine((data, ctx) => {
+            if (!isBase64(data)) {
+              ctx.addIssue({
+                code: z.ZodIssueCode.custom,
+                message: "data must be base64 encoded"
+              });
+            }
+          })
+          .describe(KMS.VERIFY.data),
+        signature: z
+          .string()
+          .superRefine((data, ctx) => {
+            if (!isBase64(data)) {
+              ctx.addIssue({
+                code: z.ZodIssueCode.custom,
+                message: "signature must be base64 encoded"
+              });
+            }
+          })
+          .describe(KMS.VERIFY.signature),
         signingAlgorithm: z.nativeEnum(SigningAlgorithm)
       }),
       response: {
@@ -546,6 +599,20 @@ export const registerCmekRouter = async (server: FastifyZodProvider) => {
 
       const result = await server.services.cmek.cmekVerify({ keyId, data, signature, signingAlgorithm }, permission);
 
+      await server.services.auditLog.createAuditLog({
+        ...req.auditLogInfo,
+        orgId: permission.orgId,
+        event: {
+          type: EventType.CMEK_VERIFY,
+          metadata: {
+            keyId,
+            signatureValid: result.signatureValid,
+            signingAlgorithm,
+            signature
+          }
+        }
+      });
+
       return result;
     }
   });
diff --git a/frontend/src/hooks/api/auditLogs/constants.tsx b/frontend/src/hooks/api/auditLogs/constants.tsx
index f4366a6eb..df6613475 100644
--- a/frontend/src/hooks/api/auditLogs/constants.tsx
+++ b/frontend/src/hooks/api/auditLogs/constants.tsx
@@ -106,6 +106,10 @@ export const eventToNameMap: { [K in EventType]: string } = {
   [EventType.GET_CMEK]: "Get KMS key",
   [EventType.CMEK_ENCRYPT]: "Encrypt with KMS key",
   [EventType.CMEK_DECRYPT]: "Decrypt with KMS key",
+  [EventType.CMEK_SIGN]: "Sign with KMS key",
+  [EventType.CMEK_VERIFY]: "Verify with KMS key",
+  [EventType.CMEK_LIST_SIGNING_ALGORITHMS]: "List signing algorithms for KMS key",
+  [EventType.CMEK_GET_PUBLIC_KEY]: "Get public key for KMS key",
   [EventType.UPDATE_EXTERNAL_GROUP_ORG_ROLE_MAPPINGS]:
     "Update SSO group to organization role mapping",
   [EventType.GET_EXTERNAL_GROUP_ORG_ROLE_MAPPINGS]: "List SSO group to organization role mapping",
diff --git a/frontend/src/hooks/api/auditLogs/enums.tsx b/frontend/src/hooks/api/auditLogs/enums.tsx
index 1e010b611..89b023ec7 100644
--- a/frontend/src/hooks/api/auditLogs/enums.tsx
+++ b/frontend/src/hooks/api/auditLogs/enums.tsx
@@ -110,6 +110,10 @@ export enum EventType {
   GET_CMEK = "get-cmek",
   CMEK_ENCRYPT = "cmek-encrypt",
   CMEK_DECRYPT = "cmek-decrypt",
+  CMEK_SIGN = "cmek-sign",
+  CMEK_VERIFY = "cmek-verify",
+  CMEK_LIST_SIGNING_ALGORITHMS = "cmek-list-signing-algorithms",
+  CMEK_GET_PUBLIC_KEY = "cmek-get-public-key",
   UPDATE_EXTERNAL_GROUP_ORG_ROLE_MAPPINGS = "update-external-group-org-role-mapping",
   GET_EXTERNAL_GROUP_ORG_ROLE_MAPPINGS = "get-external-group-org-role-mapping",
   GET_PROJECT_TEMPLATES = "get-project-templates",