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CRYPT_RSA_SSA_PSS_PARAMETERS structure (wincrypt.h)

  • Article

The CRYPT_RSA_SSA_PSS_PARAMETERS structure contains the parameters for an RSA PKCS #1 v2.1 signature. This structure is used with the PKCS_RSA_SSA_PSS_PARAMETERS and szOID_RSA_SSA_PSS encoding types.

Syntax

typedef struct _CRYPT_RSA_SSA_PSS_PARAMETERS {
  CRYPT_ALGORITHM_IDENTIFIER HashAlgorithm;
  CRYPT_MASK_GEN_ALGORITHM   MaskGenAlgorithm;
  DWORD                      dwSaltLength;
  DWORD                      dwTrailerField;
} CRYPT_RSA_SSA_PSS_PARAMETERS, *PCRYPT_RSA_SSA_PSS_PARAMETERS;

Members

HashAlgorithm

A CRYPT_ALGORITHM_IDENTIFIER structure that identifies the hash algorithm to use. If this is not set for encoding, the default algorithm is szOID_OIWSEC_sha1.

MaskGenAlgorithm

A CRYPT_MASK_GEN_ALGORITHM structure that identifies the mask generation function to use. If this is not set for encoding, the default algorithm is szOID_RSA_MGF1 with the mask generation hash algorithm defaulting to the hash algorithm.

dwSaltLength

The octet length of the salt. If this is not set for encoding, the default salt length is the length of the hash value.

dwTrailerField

The trailer field number. If this is not set for encoding, the default is PKCS_RSA_SSA_PSS_TRAILER_FIELD_BC.

Requirements

Requirement Value
Minimum supported client Windows Vista [desktop apps only]
Minimum supported server Windows Server 2008 [desktop apps only]
Header wincrypt.h