RSASSAVerify_SHA1_PKCSv15

Verifies a signature using the v1.5 version of the RSA scheme with the SHA-1 message digest.

Syntax

IppStatus ippsRSASSAVerify_SHA1_PKCSv15 (const Ipp8u* pMsg, Ipp32u msgLen, const Ipp8u* pSign, IppBool* pIsValid, IppsRSAState* pRSA);

Parameters

pMsg

Pointer to the message that has been signed.

msgLen

Length of the message.

pSign

Pointer to the signature string to be verified.

pIsValid

Pointer to the verification result.

pRSA

Pointer to the properly initialized IppsRSAState context.

Description

This function is declared in the ippcp.h file. The function verifies a signature using the v1.5 version of the RSA scheme, defined in [PKCS 1.2.1], with the SHA-1 message digest.

Return Values

ippStsNoErr

Indicates no error. Any other value indicates an error or warning.

ippStsNullPtrErr

Indicates an error condition if any of the specified pointers is NULL.

ippStsContextMatchErr

Indicates an error condition if the RSA context parameter does not match the operation.

ippStsInvalidCryptoKeyErr

Indicates an error condition if the RSA context has not been properly set up for the operation.

ippStsSizeErr

Indicates an error condition if the length of the RSA modulus is too small (see details in [PKCS 1.2.1]).

See Also

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