Signer Struct Reference

#include <cert.h>

Collaboration diagram for Signer:

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Detailed Description

Data type used for CMS digital signature operations.

Sample code illustrating the use of this class to create signed CMS PDUs appears in the Cookbook section IETF Cryptographic Message Syntax (CMS).

Public Member Functions
void	clear ()
	Clear this object.
int	load (const str &b)
	Load this object with signer information.
int	make (const str &digest, const str &cert, const Key &k, const num &rand, str &b)
	Create a CMS SignerInfo PDU using a specified key.
int	make2 (const str &digest, tokenop &t1, str &b)
	Create a CMS SignerInfo PDU using a signing callback.

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Member Function Documentation

int make	(	const str &	digest,
		const str &	cert,
		const Key &	k,
		const num &	rand,
		str &	b
	)

Create a CMS SignerInfo PDU using a specified key.

Parameters:

	digest	the message digest to be signed
	cert	the signer's certificate
	k	the signer's key (SHA-1 hashing and PKCS#1 padding must already be specified)
	rand	an pseudorandom seed required for non-deterministic signatures
	b	an output buffer for the CMS SignerInfo PDU

Returns:

0 success
1 signature operation failed

int make2	(	const str &	digest,
		tokenop &	t1,
		str &	b
	)

Create a CMS SignerInfo PDU using a signing callback.

Parameters:

	digest	the message digest to be signed
	t1	the signature callback function
	b	an output buffer for the CMS SignerInfo PDU

Returns:

0 success
2 no callback function specified in t1 6 signature callback failed

Remarks:

Upon return the output buffer contains a SignerInfo PDU as specified in RFC 3852, section 5.3.

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The documentation for this struct was generated from the following file:

• cert.h

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ISC Cryptographic Development Kit - User's Guide
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