Edit

Share via

SecPkgContext_SupportedSignatures structure (schannel.h)

  • Article

Specifies the signature algorithms supported by an Schannel connection.

Syntax

typedef struct _SecPkgContext_SupportedSignatures {
  WORD cSignatureAndHashAlgorithms;
  WORD *pSignatureAndHashAlgorithms;
} SecPkgContext_SupportedSignatures, *PSecPkgContext_SupportedSignatures;

Members

cSignatureAndHashAlgorithms

The number of elements in the pSignatureAndHashAlgorithms array.

pSignatureAndHashAlgorithms

An array of values that specify supported algorithms. These values are in the following format.

The upper byte can be one of the following values that specifies a signature algorithm.

Value Meaning
0
 Anonymous signature algorithm.
1
 The RSA signature algorithm.
2
 The DSA signature algorithm.
3
 The ECDSA signature algorithm.
255
 Reserved.
 

The lower byte can be one of the following values that specifies a hash algorithm.

Value Meaning
0
 None.
1
 The MD5 hash algorithm.
2
 The SHA1 hash algorithm.
3
 The SHA-224 hash algorithm.
4
 The SHA-256 hash algorithm.
5
 The SHA-384 hash algorithm.
6
 The SHA-512 hash algorithm.
255
 Reserved.

Requirements

Requirement Value
Minimum supported client Windows 7 [desktop apps only]
Minimum supported server Windows Server 2008 R2 [desktop apps only]
Header schannel.h

See also

QueryContextAttributes (Schannel)