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authorAgrawal, Sachin <sachin.agrawal@intel.com>2021-06-14 23:30:43 +0800
committermergify[bot] <37929162+mergify[bot]@users.noreply.github.com>2021-06-23 15:19:44 +0000
commit20ca52882877ba9025da2ee58c8dab7808eca457 (patch)
tree126be7fc8eacb8dfb04d2dee2ef6d485291fc9fc /CryptoPkg/Library/BaseCryptLibOnProtocolPpi
parent7471751a4d813a64501a9d7819b1eb405911b310 (diff)
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CryptoPkg: BaseCryptLib: Update Salt length requirement for RSA-PSS scheme.
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3455 Enforce salt length to be equal to digest length for RSA-PSS encoding scheme. Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Xiaoyu Lu <xiaoyux.lu@intel.com> Cc: Guomin Jiang <guomin.jiang@intel.com> Signed-off-by: Sachin Agrawal <sachin.agrawal@intel.com> Reviewed-by: Jiewen Yao <Jiewen.yao@intel.com>
Diffstat (limited to 'CryptoPkg/Library/BaseCryptLibOnProtocolPpi')
-rw-r--r--CryptoPkg/Library/BaseCryptLibOnProtocolPpi/CryptLib.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/CryptoPkg/Library/BaseCryptLibOnProtocolPpi/CryptLib.c b/CryptoPkg/Library/BaseCryptLibOnProtocolPpi/CryptLib.c
index af99ed7f5b..fcb5913780 100644
--- a/CryptoPkg/Library/BaseCryptLibOnProtocolPpi/CryptLib.c
+++ b/CryptoPkg/Library/BaseCryptLibOnProtocolPpi/CryptLib.c
@@ -1556,7 +1556,7 @@ RsaPkcs1Verify (
Verifies the RSA signature with RSASSA-PSS signature scheme defined in RFC 8017.
Implementation determines salt length automatically from the signature encoding.
Mask generation function is the same as the message digest algorithm.
- Salt length should atleast be equal to digest length.
+ Salt length should be equal to digest length.
@param[in] RsaContext Pointer to RSA context for signature verification.
@param[in] Message Pointer to octet message to be verified.
@@ -1592,6 +1592,14 @@ RsaPssVerify (
If the Signature buffer is too small to hold the contents of signature, FALSE
is returned and SigSize is set to the required buffer size to obtain the signature.
+ If RsaContext is NULL, then return FALSE.
+ If Message is NULL, then return FALSE.
+ If MsgSize is zero or > INT_MAX, then return FALSE.
+ If DigestLen is NOT 32, 48 or 64, return FALSE.
+ If SaltLen is not equal to DigestLen, then return FALSE.
+ If SigSize is large enough but Signature is NULL, then return FALSE.
+ If this interface is not supported, then return FALSE.
+
@param[in] RsaContext Pointer to RSA context for signature generation.
@param[in] Message Pointer to octet message to be signed.
@param[in] MsgSize Size of the message in bytes.