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[crypto] Generalise X.509 OID-identified algorithm to asn1.c

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The concept of an OID-identified algorithm as defined in X.509 is used
in some other standards (e.g. PKCS#7).  Generalise this functionality
and provide it as part of the ASN.1 core.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2012-03-21 13:57:32 +00:00
parent 9a03a8e3d2
commit 38b7e43f7d
5 changed files with 155 additions and 121 deletions
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47
src/crypto/rsa.c
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@@ -39,6 +39,53 @@ FILE_LICENCE ( GPL2_OR_LATER );
* RSA is documented in RFC 3447.
*/
/** "rsaEncryption" object identifier */
static uint8_t oid_rsa_encryption[] = { ASN1_OID_RSAENCRYPTION };
/** "md5WithRSAEncryption" object identifier */
static uint8_t oid_md5_with_rsa_encryption[] =
{ ASN1_OID_MD5WITHRSAENCRYPTION };
/** "sha1WithRSAEncryption" object identifier */
static uint8_t oid_sha1_with_rsa_encryption[] =
{ ASN1_OID_SHA1WITHRSAENCRYPTION };
/** "sha256WithRSAEncryption" object identifier */
static uint8_t oid_sha256_with_rsa_encryption[] =
{ ASN1_OID_SHA256WITHRSAENCRYPTION };
/** "rsaEncryption" OID-identified algorithm */
struct asn1_algorithm rsa_encryption_algorithm __asn1_algorithm = {
.name = "rsaEncryption",
.pubkey = &rsa_algorithm,
.digest = NULL,
.oid = ASN1_OID_CURSOR ( oid_rsa_encryption ),
};
/** "md5WithRSAEncryption" OID-identified algorithm */
struct asn1_algorithm md5_with_rsa_encryption_algorithm __asn1_algorithm = {
.name = "md5WithRSAEncryption",
.pubkey = &rsa_algorithm,
.digest = &md5_algorithm,
.oid = ASN1_OID_CURSOR ( oid_md5_with_rsa_encryption ),
};
/** "sha1WithRSAEncryption" OID-identified algorithm */
struct asn1_algorithm sha1_with_rsa_encryption_algorithm __asn1_algorithm = {
.name = "sha1WithRSAEncryption",
.pubkey = &rsa_algorithm,
.digest = &sha1_algorithm,
.oid = ASN1_OID_CURSOR ( oid_sha1_with_rsa_encryption ),
};
/** "sha256WithRSAEncryption" OID-identified algorithm */
struct asn1_algorithm sha256_with_rsa_encryption_algorithm __asn1_algorithm = {
.name = "sha256WithRSAEncryption",
.pubkey = &rsa_algorithm,
.digest = &sha256_algorithm,
.oid = ASN1_OID_CURSOR ( oid_sha256_with_rsa_encryption ),
};
/** MD5 digestInfo prefix */
static const uint8_t rsa_md5_prefix_data[] =
{ RSA_DIGESTINFO_PREFIX ( MD5_DIGEST_SIZE, ASN1_OID_MD5 ) };