md5_sha1.c File Reference

Hybrid MD5+SHA1 hash as used by TLSv1.1 and earlier. More...

#include <ipxe/crypto.h>
#include <ipxe/rsa.h>
#include <ipxe/md5_sha1.h>

Go to the source code of this file.

Functions
	FILE_LICENCE (GPL2_OR_LATER_OR_UBDL)
	FILE_SECBOOT (PERMITTED)
static void	md5_sha1_init (struct digest_algorithm *digest __unused, void *ctx)
	Initialise MD5+SHA1 algorithm.
static void	md5_sha1_update (struct digest_algorithm *digest __unused, void *ctx, const void *data, size_t len)
	Accumulate data with MD5+SHA1 algorithm.
static void	md5_sha1_final (struct digest_algorithm *digest __unused, void *ctx, void *out)
	Generate MD5+SHA1 digest.

Variables
struct digest_algorithm	md5_sha1_algorithm
	Hybrid MD5+SHA1 digest algorithm.
struct rsa_digestinfo_prefix rsa_md5_sha1_prefix	__rsa_digestinfo_prefix
	RSA digestInfo prefix for MD5+SHA1 algorithm.

Detailed Description

Hybrid MD5+SHA1 hash as used by TLSv1.1 and earlier.

Definition in file md5_sha1.c.

Function Documentation

FILE_LICENCE()

FILE_LICENCE

(

GPL2_OR_LATER_OR_UBDL

)

FILE_SECBOOT()

FILE_SECBOOT

(

PERMITTED

)

md5_sha1_init()

void md5_sha1_init ( struct digest_algorithm *digest __unused, void * ctx )

static

Initialise MD5+SHA1 algorithm.

Parameters

digest	Digest algorithm
ctx	MD5+SHA1 context

Definition at line 43 of file md5_sha1.c.

                                        {
        struct md5_sha1_context *context = ctx;
 
        digest_init ( &md5_algorithm, context->md5 );
        digest_init ( &sha1_algorithm, context->sha1 );
}

References __unused, ctx, digest_init(), md5_sha1_context::md5, md5_algorithm, md5_sha1_context::sha1, and sha1_algorithm.

md5_sha1_update()

void md5_sha1_update ( struct digest_algorithm *digest __unused, void * ctx, const void * data, size_t len )

static

Accumulate data with MD5+SHA1 algorithm.

Parameters

digest	Digest algorithm
ctx	MD5+SHA1 context
data	Data
len	Length of data

Definition at line 59 of file md5_sha1.c.

                                                                        {
        struct md5_sha1_context *context = ctx;
 
        digest_update ( &md5_algorithm, context->md5, data, len );
        digest_update ( &sha1_algorithm, context->sha1, data, len );
}

References __unused, ctx, data, digest_update(), len, md5_sha1_context::md5, md5_algorithm, md5_sha1_context::sha1, and sha1_algorithm.

md5_sha1_final()

void md5_sha1_final ( struct digest_algorithm *digest __unused, void * ctx, void * out )

static

Generate MD5+SHA1 digest.

Parameters

digest	Digest algorithm
ctx	MD5+SHA1 context
out	Output buffer

Definition at line 74 of file md5_sha1.c.

                                                    {
        struct md5_sha1_context *context = ctx;
        struct md5_sha1_digest *output = out;
 
        digest_final ( &md5_algorithm, context->md5, output->md5 );
        digest_final ( &sha1_algorithm, context->sha1, output->sha1 );
}

References __unused, ctx, digest_final(), md5_sha1_context::md5, md5_algorithm, out, md5_sha1_context::sha1, and sha1_algorithm.

Variable Documentation

md5_sha1_algorithm

struct digest_algorithm md5_sha1_algorithm

Initial value:

                      = {
        .name           = "md5+sha1",
        .ctxsize        = sizeof ( struct md5_sha1_context ),
        .blocksize      = sizeof ( union md5_sha1_block ),
        .digestsize     = sizeof ( struct md5_sha1_digest ),
        .init           = md5_sha1_init,
        .update         = md5_sha1_update,
        .final          = md5_sha1_final,
}

Hybrid MD5+SHA1 digest algorithm.

Definition at line 84 of file md5_sha1.c.

                                           {
        .name           = "md5+sha1",
        .ctxsize        = sizeof ( struct md5_sha1_context ),
        .blocksize      = sizeof ( union md5_sha1_block ),
        .digestsize     = sizeof ( struct md5_sha1_digest ),
        .init           = md5_sha1_init,
        .update         = md5_sha1_update,
        .final          = md5_sha1_final,
};

Referenced by tls_generate_resumption_master(), tls_select_cipher(), tls_set_kdf_master(), and tls_verify_dh_params().

__rsa_digestinfo_prefix

struct rsa_digestinfo_prefix rsa_md5_sha1_prefix __rsa_digestinfo_prefix

Initial value:

                           = {
        .digest = &md5_sha1_algorithm,
        .data = NULL, 
        .len = 0,
}

RSA digestInfo prefix for MD5+SHA1 algorithm.

Definition at line 95 of file md5_sha1.c.

                                                                         {
        .digest = &md5_sha1_algorithm,
        .data = NULL, /* MD5+SHA1 signatures have no digestInfo */
        .len = 0,
};