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path: root/SecurityPkg/Library/FmpAuthenticationLibRsa2048Sha256
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-rw-r--r--SecurityPkg/Library/FmpAuthenticationLibRsa2048Sha256/FmpAuthenticationLibRsa2048Sha256.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/SecurityPkg/Library/FmpAuthenticationLibRsa2048Sha256/FmpAuthenticationLibRsa2048Sha256.c b/SecurityPkg/Library/FmpAuthenticationLibRsa2048Sha256/FmpAuthenticationLibRsa2048Sha256.c
index d113d58..4b2556c 100644
--- a/SecurityPkg/Library/FmpAuthenticationLibRsa2048Sha256/FmpAuthenticationLibRsa2048Sha256.c
+++ b/SecurityPkg/Library/FmpAuthenticationLibRsa2048Sha256/FmpAuthenticationLibRsa2048Sha256.c
@@ -306,6 +306,11 @@ AuthenticateFmpImage (
return RETURN_UNSUPPORTED;
}
+ if ((PublicKeyDataLength % SHA256_DIGEST_SIZE) != 0) {
+ DEBUG ((DEBUG_ERROR, "PublicKeyDataLength is not multiple SHA256 size\n"));
+ return RETURN_UNSUPPORTED;
+ }
+
if (ImageSize < sizeof(EFI_FIRMWARE_IMAGE_AUTHENTICATION)) {
DEBUG((DEBUG_ERROR, "AuthenticateFmpImage - ImageSize too small\n"));
return RETURN_INVALID_PARAMETER;