20ca528828
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>
61 lines
2.3 KiB
C
61 lines
2.3 KiB
C
/** @file
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RSA-PSS Asymmetric Cipher Wrapper Implementation over OpenSSL.
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This file does not provide real capabilities for following APIs in RSA handling:
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1) RsaPssSign
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Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include "InternalCryptLib.h"
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/**
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Carries out the RSA-SSA signature generation with EMSA-PSS encoding scheme.
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This function carries out the RSA-SSA signature generation with EMSA-PSS encoding scheme defined in
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RFC 8017.
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Mask generation function is the same as the message digest algorithm.
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If the Signature buffer is too small to hold the contents of signature, FALSE
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is returned and SigSize is set to the required buffer size to obtain the signature.
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If RsaContext is NULL, then return FALSE.
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If Message is NULL, then return FALSE.
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If MsgSize is zero or > INT_MAX, then return FALSE.
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If DigestLen is NOT 32, 48 or 64, return FALSE.
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If SaltLen is not equal to DigestLen, then return FALSE.
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If SigSize is large enough but Signature is NULL, then return FALSE.
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If this interface is not supported, then return FALSE.
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@param[in] RsaContext Pointer to RSA context for signature generation.
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@param[in] Message Pointer to octet message to be signed.
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@param[in] MsgSize Size of the message in bytes.
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@param[in] DigestLen Length of the digest in bytes to be used for RSA signature operation.
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@param[in] SaltLen Length of the salt in bytes to be used for PSS encoding.
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@param[out] Signature Pointer to buffer to receive RSA PSS signature.
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@param[in, out] SigSize On input, the size of Signature buffer in bytes.
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On output, the size of data returned in Signature buffer in bytes.
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@retval TRUE Signature successfully generated in RSASSA-PSS.
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@retval FALSE Signature generation failed.
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@retval FALSE SigSize is too small.
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@retval FALSE This interface is not supported.
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**/
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BOOLEAN
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EFIAPI
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RsaPssSign (
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IN VOID *RsaContext,
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IN CONST UINT8 *Message,
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IN UINTN MsgSize,
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IN UINT16 DigestLen,
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IN UINT16 SaltLen,
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OUT UINT8 *Signature,
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IN OUT UINTN *SigSize
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)
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{
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ASSERT (FALSE);
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return FALSE;
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}
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