rsa_impl.c revision b60f2a0b921611326383e4789e0874e9e8a2e708
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee * CDDL HEADER START
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fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee * See the License for the specific language governing permissions
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fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee * Use is subject to license terms.
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee#pragma ident "%Z%%M% %I% %E% SMI"
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee * This file contains RSA helper routines common to
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee * the PKCS11 soft token code and the kernel RSA code.
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee * DER encoding T of the DigestInfo values for MD5, SHA1, and SHA2
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee * from PKCS#1 v2.1: RSA Cryptography Standard Section 9.2 Note 1
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee * MD5: (0x)30 20 30 0c 06 08 2a 86 48 86 f7 0d 02 05 05 00 04 10 || H
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee * SHA-1: (0x)30 21 30 09 06 05 2b 0e 03 02 1a 05 00 04 14 || H
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee * SHA-256: (0x)30 31 30 0d 06 09 60 86 48 01 65 03 04 02 01 05 00 04 20 || H.
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee * SHA-384: (0x)30 41 30 0d 06 09 60 86 48 01 65 03 04 02 02 05 00 04 30 || H.
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee * SHA-512: (0x)30 51 30 0d 06 09 60 86 48 01 65 03 04 02 03 05 00 04 40 || H.
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee * Where H is the digested output from MD5 or SHA1. We define the constant
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee * byte array (the prefix) here and use it rather than doing the DER
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee * encoding of the OID in a separate routine.
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomeeconst CK_BYTE MD5_DER_PREFIX[MD5_DER_PREFIX_Len] = {0x30, 0x20, 0x30, 0x0c,
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee 0x06, 0x08, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x02, 0x05, 0x05, 0x00,
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomeeconst CK_BYTE SHA1_DER_PREFIX[SHA1_DER_PREFIX_Len] = {0x30, 0x21, 0x30,
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee 0x09, 0x06, 0x05, 0x2b, 0x0e, 0x03, 0x02, 0x1a, 0x05, 0x00, 0x04, 0x14};
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomeeconst CK_BYTE SHA1_DER_PREFIX_OID[SHA1_DER_PREFIX_OID_Len] = {0x30, 0x1f, 0x30,
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee 0x07, 0x06, 0x05, 0x2b, 0x0e, 0x03, 0x02, 0x1a, 0x04, 0x14};
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomeeconst CK_BYTE SHA256_DER_PREFIX[SHA2_DER_PREFIX_Len] = {0x30, 0x31, 0x30, 0x0d,
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01, 0x05,
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomeeconst CK_BYTE SHA384_DER_PREFIX[SHA2_DER_PREFIX_Len] = {0x30, 0x41, 0x30, 0x0d,
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x02, 0x05,
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomeeconst CK_BYTE SHA512_DER_PREFIX[SHA2_DER_PREFIX_Len] = {0x30, 0x51, 0x30, 0x0d,
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x03, 0x05,
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee/* psize and qsize are in bits */
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee/* EXPORT DELETE START */
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee if ((err = big_init(&(key->dmodpminus1), plen)) != BIG_OK)
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee if ((err = big_init(&(key->dmodqminus1), qlen)) != BIG_OK)
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee if ((err = big_init(&(key->pinvmodq), qlen)) != BIG_OK)
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee/* EXPORT DELETE END */
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee/* EXPORT DELETE START */
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee/* EXPORT DELETE END */
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee * To create a block type "02" encryption block for RSA PKCS encryption
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee * The RSA PKCS Padding before encryption is in the following format:
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee * +------+--------------------+----+-----------------------------+
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee * |0x0002| 8 bytes or more RN |0x00| DATA |
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee * +------+--------------------+----+-----------------------------+
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee/* EXPORT DELETE START */
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee /* Pad with 0x0002+non-zero pseudorandom numbers+0x00. */
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee rv = knzero_random_generator(padbuf + 2, padbuflen - 3);
fb3fb4f3d76d55b64440afd0af72775dfad3bd1dtomee rv = soft_nzero_random_generator(padbuf + 2, padbuflen - 3);
return (CKR_OK);
return (CKR_ENCRYPTED_DATA_INVALID);
if (i < MIN_PKCS1_PADLEN) {
return (CKR_ENCRYPTED_DATA_INVALID);
*plen -= i;
return (CKR_OK);
return (CKR_ENCRYPTED_DATA_INVALID);
return (CKR_DATA_LEN_RANGE);
#ifdef _KERNEL
return (CKR_OK);
return (CKR_SIGNATURE_INVALID);
if (i < MIN_PKCS1_PADLEN) {
return (CKR_SIGNATURE_INVALID);
*mbit_l -= i;
return (CKR_OK);
return (CKR_SIGNATURE_INVALID);
return (CKR_SIGNATURE_INVALID);