diff options
Diffstat (limited to 'security/nss/lib/cryptohi/secsign.c')
| -rw-r--r-- | security/nss/lib/cryptohi/secsign.c | 497 |
1 files changed, 0 insertions, 497 deletions
diff --git a/security/nss/lib/cryptohi/secsign.c b/security/nss/lib/cryptohi/secsign.c deleted file mode 100644 index 35af3f701..000000000 --- a/security/nss/lib/cryptohi/secsign.c +++ /dev/null @@ -1,497 +0,0 @@ -/* - * Signature stuff. - * - * The contents of this file are subject to the Mozilla Public - * License Version 1.1 (the "License"); you may not use this file - * except in compliance with the License. You may obtain a copy of - * the License at http://www.mozilla.org/MPL/ - * - * Software distributed under the License is distributed on an "AS - * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or - * implied. See the License for the specific language governing - * rights and limitations under the License. - * - * The Original Code is the Netscape security libraries. - * - * The Initial Developer of the Original Code is Netscape - * Communications Corporation. Portions created by Netscape are - * Copyright (C) 1994-2000 Netscape Communications Corporation. All - * Rights Reserved. - * - * Contributor(s): - * - * Alternatively, the contents of this file may be used under the - * terms of the GNU General Public License Version 2 or later (the - * "GPL"), in which case the provisions of the GPL are applicable - * instead of those above. If you wish to allow use of your - * version of this file only under the terms of the GPL and not to - * allow others to use your version of this file under the MPL, - * indicate your decision by deleting the provisions above and - * replace them with the notice and other provisions required by - * the GPL. If you do not delete the provisions above, a recipient - * may use your version of this file under either the MPL or the - * GPL. - * - * $Id$ - */ - -#include <stdio.h> -#include "cryptohi.h" -#include "sechash.h" -#include "secder.h" -#include "keyhi.h" -#include "secoid.h" -#include "secdig.h" -#include "pk11func.h" -#include "secerr.h" - -struct SGNContextStr { - SECOidTag signalg; - SECOidTag hashalg; - void *hashcx; - SECHashObject *hashobj; - SECKEYPrivateKey *key; -}; - -SGNContext * -SGN_NewContext(SECOidTag alg, SECKEYPrivateKey *key) -{ - SGNContext *cx; - SECOidTag hashalg, signalg; - KeyType keyType; - - /* OK, map a PKCS #7 hash and encrypt algorithm into - * a standard hashing algorithm. Why did we pass in the whole - * PKCS #7 algTag if we were just going to change here you might - * ask. Well the answer is for some cards we may have to do the - * hashing on card. It may not support CKM_RSA_PKCS sign algorithm, - * it may just support CKM_RSA_PKCS_WITH_SHA1 and/or CKM_RSA_PKCS_WITH_MD5. - */ - switch (alg) { - /* We probably shouldn't be generating MD2 signatures either */ - case SEC_OID_PKCS1_MD2_WITH_RSA_ENCRYPTION: - hashalg = SEC_OID_MD2; - signalg = SEC_OID_PKCS1_RSA_ENCRYPTION; - keyType = rsaKey; - break; - case SEC_OID_PKCS1_MD5_WITH_RSA_ENCRYPTION: - hashalg = SEC_OID_MD5; - signalg = SEC_OID_PKCS1_RSA_ENCRYPTION; - keyType = rsaKey; - break; - case SEC_OID_PKCS1_SHA1_WITH_RSA_ENCRYPTION: - case SEC_OID_ISO_SHA_WITH_RSA_SIGNATURE: - hashalg = SEC_OID_SHA1; - signalg = SEC_OID_PKCS1_RSA_ENCRYPTION; - keyType = rsaKey; - break; - /* what about normal DSA? */ - case SEC_OID_ANSIX9_DSA_SIGNATURE_WITH_SHA1_DIGEST: - case SEC_OID_BOGUS_DSA_SIGNATURE_WITH_SHA1_DIGEST: - hashalg = SEC_OID_SHA1; - signalg = SEC_OID_ANSIX9_DSA_SIGNATURE; - keyType = dsaKey; - break; - case SEC_OID_MISSI_DSS: - case SEC_OID_MISSI_KEA_DSS: - case SEC_OID_MISSI_KEA_DSS_OLD: - case SEC_OID_MISSI_DSS_OLD: - hashalg = SEC_OID_SHA1; - signalg = SEC_OID_MISSI_DSS; /* XXX Is there a better algid? */ - keyType = fortezzaKey; - break; - /* we don't implement MD4 hashes. - * we *CERTAINLY* don't want to sign one! */ - case SEC_OID_PKCS1_MD4_WITH_RSA_ENCRYPTION: - default: - PORT_SetError(SEC_ERROR_INVALID_ARGS); - return 0; - } - - /* verify our key type */ - if (key->keyType != keyType && - !((key->keyType == dsaKey) && (keyType == fortezzaKey)) && - !((key->keyType == fortezzaKey) && (keyType == dsaKey)) ) { - PORT_SetError(SEC_ERROR_INVALID_ALGORITHM); - return 0; - } - - cx = (SGNContext*) PORT_ZAlloc(sizeof(SGNContext)); - if (cx) { - cx->hashalg = hashalg; - cx->signalg = signalg; - cx->key = key; - } - return cx; -} - -void -SGN_DestroyContext(SGNContext *cx, PRBool freeit) -{ - if (cx) { - if (cx->hashcx != NULL) { - (*cx->hashobj->destroy)(cx->hashcx, PR_TRUE); - cx->hashcx = NULL; - } - if (freeit) { - PORT_ZFree(cx, sizeof(SGNContext)); - } - } -} - -SECStatus -SGN_Begin(SGNContext *cx) -{ - if (cx->hashcx != NULL) { - (*cx->hashobj->destroy)(cx->hashcx, PR_TRUE); - cx->hashcx = NULL; - } - - switch (cx->hashalg) { - case SEC_OID_MD2: - cx->hashobj = &SECHashObjects[HASH_AlgMD2]; - break; - case SEC_OID_MD5: - cx->hashobj = &SECHashObjects[HASH_AlgMD5]; - break; - case SEC_OID_SHA1: - cx->hashobj = &SECHashObjects[HASH_AlgSHA1]; - break; - default: - PORT_SetError(SEC_ERROR_INVALID_ALGORITHM); - return SECFailure; - } - - cx->hashcx = (*cx->hashobj->create)(); - if (cx->hashcx == NULL) - return SECFailure; - - (*cx->hashobj->begin)(cx->hashcx); - return SECSuccess; -} - -SECStatus -SGN_Update(SGNContext *cx, unsigned char *input, unsigned inputLen) -{ - if (cx->hashcx == NULL) { - PORT_SetError(SEC_ERROR_INVALID_ARGS); - return SECFailure; - } - (*cx->hashobj->update)(cx->hashcx, input, inputLen); - return SECSuccess; -} - -SECStatus -SGN_End(SGNContext *cx, SECItem *result) -{ - unsigned char digest[32]; - unsigned part1, signatureLen; - SECStatus rv; - SECItem digder, sigitem; - PRArenaPool *arena = 0; - SECKEYPrivateKey *privKey = cx->key; - SGNDigestInfo *di = 0; - - - result->data = 0; - digder.data = 0; - - /* Finish up digest function */ - if (cx->hashcx == NULL) { - PORT_SetError(SEC_ERROR_INVALID_ARGS); - return SECFailure; - } - (*cx->hashobj->end)(cx->hashcx, digest, &part1, sizeof(digest)); - - - if (privKey->keyType == rsaKey) { - - arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); - if ( !arena ) { - rv = SECFailure; - goto loser; - } - - /* Construct digest info */ - di = SGN_CreateDigestInfo(cx->hashalg, digest, part1); - if (!di) { - rv = SECFailure; - goto loser; - } - - /* Der encode the digest as a DigestInfo */ - rv = DER_Encode(arena, &digder, SGNDigestInfoTemplate, di); - if (rv != SECSuccess) { - goto loser; - } - } else { - digder.data = digest; - digder.len = part1; - } - - /* - ** Encrypt signature after constructing appropriate PKCS#1 signature - ** block - */ - signatureLen = PK11_SignatureLen(privKey); - sigitem.len = signatureLen; - sigitem.data = (unsigned char*) PORT_Alloc(signatureLen); - - if (sigitem.data == NULL) { - rv = SECFailure; - goto loser; - } - - rv = PK11_Sign(privKey, &sigitem, &digder); - if (rv != SECSuccess) { - PORT_Free(sigitem.data); - sigitem.data = NULL; - } - - if (cx->signalg == SEC_OID_ANSIX9_DSA_SIGNATURE) { - rv = DSAU_EncodeDerSig(result, &sigitem); - PORT_Free(sigitem.data); - if (rv != SECSuccess) - goto loser; - } else { - result->len = sigitem.len; - result->data = sigitem.data; - } - - loser: - SGN_DestroyDigestInfo(di); - if (arena != NULL) { - PORT_FreeArena(arena, PR_FALSE); - } - return rv; -} - -/************************************************************************/ - -/* -** Sign a block of data returning in result a bunch of bytes that are the -** signature. Returns zero on success, an error code on failure. -*/ -SECStatus -SEC_SignData(SECItem *res, unsigned char *buf, int len, - SECKEYPrivateKey *pk, SECOidTag algid) -{ - SECStatus rv; - SGNContext *sgn; - - - sgn = SGN_NewContext(algid, pk); - - if (sgn == NULL) - return SECFailure; - - rv = SGN_Begin(sgn); - if (rv != SECSuccess) - goto loser; - - rv = SGN_Update(sgn, buf, len); - if (rv != SECSuccess) - goto loser; - - rv = SGN_End(sgn, res); - - loser: - SGN_DestroyContext(sgn, PR_TRUE); - return rv; -} - -/* -** Sign the input file's contents returning in result a bunch of bytes -** that are the signature. Returns zero on success, an error code on -** failure. -*/ -SECStatus -SEC_SignFile(SECItem *result, FILE *input, - SECKEYPrivateKey *pk, SECOidTag algid) -{ - unsigned char buf[1024]; - SECStatus rv; - int nb; - SGNContext *sgn; - - sgn = SGN_NewContext(algid, pk); - if (sgn == NULL) - return SECFailure; - rv = SGN_Begin(sgn); - if (rv != SECSuccess) - goto loser; - - /* - ** Now feed the contents of the input file into the digest - ** algorithm, one chunk at a time, until we have exhausted the - ** input - */ - for (;;) { - if (feof(input)) break; - nb = fread(buf, 1, sizeof(buf), input); - if (nb == 0) { - if (ferror(input)) { - PORT_SetError(SEC_ERROR_IO); - rv = SECFailure; - goto loser; - } - break; - } - rv = SGN_Update(sgn, buf, nb); - if (rv != SECSuccess) - goto loser; - } - - /* Sign the digest */ - rv = SGN_End(sgn, result); - /* FALL THROUGH */ - - loser: - SGN_DestroyContext(sgn, PR_TRUE); - return rv; -} - -/************************************************************************/ - -DERTemplate CERTSignedDataTemplate[] = -{ - { DER_SEQUENCE, - 0, NULL, sizeof(CERTSignedData) }, - { DER_ANY, - offsetof(CERTSignedData,data), }, - { DER_INLINE, - offsetof(CERTSignedData,signatureAlgorithm), - SECAlgorithmIDTemplate, }, - { DER_BIT_STRING, - offsetof(CERTSignedData,signature), }, - { 0, } -}; - -const SEC_ASN1Template CERT_SignedDataTemplate[] = -{ - { SEC_ASN1_SEQUENCE, - 0, NULL, sizeof(CERTSignedData) }, - { SEC_ASN1_ANY, - offsetof(CERTSignedData,data), }, - { SEC_ASN1_INLINE, - offsetof(CERTSignedData,signatureAlgorithm), - SECOID_AlgorithmIDTemplate, }, - { SEC_ASN1_BIT_STRING, - offsetof(CERTSignedData,signature), }, - { 0, } -}; - -SECStatus -SEC_DerSignData(PRArenaPool *arena, SECItem *result, - unsigned char *buf, int len, SECKEYPrivateKey *pk, SECOidTag algID) -{ - SECItem it; - CERTSignedData sd; - SECStatus rv; - - it.data = 0; - - /* XXX We should probably have some asserts here to make sure the key type - * and algID match - */ - - if (algID == SEC_OID_UNKNOWN) { - switch(pk->keyType) { - case rsaKey: - algID = SEC_OID_PKCS1_SHA1_WITH_RSA_ENCRYPTION; - break; - case dsaKey: - algID = SEC_OID_ANSIX9_DSA_SIGNATURE_WITH_SHA1_DIGEST; - break; - default: - return SECFailure; - break; - } - } - - /* Sign input buffer */ - rv = SEC_SignData(&it, buf, len, pk, algID); - if (rv) goto loser; - - /* Fill out SignedData object */ - PORT_Memset(&sd, 0, sizeof(sd)); - sd.data.data = buf; - sd.data.len = len; - sd.signature.data = it.data; - sd.signature.len = it.len << 3; /* convert to bit string */ - rv = SECOID_SetAlgorithmID(arena, &sd.signatureAlgorithm, algID, 0); - if (rv) goto loser; - - /* DER encode the signed data object */ - rv = DER_Encode(arena, result, CERTSignedDataTemplate, &sd); - /* FALL THROUGH */ - - loser: - PORT_Free(it.data); - return rv; -} - -SECStatus -SGN_Digest(SECKEYPrivateKey *privKey, - SECOidTag algtag, SECItem *result, SECItem *digest) -{ - unsigned modulusLen; - SECStatus rv; - SECItem digder; - PRArenaPool *arena = 0; - SGNDigestInfo *di = 0; - - - result->data = 0; - - if (privKey->keyType == rsaKey) { - - arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE); - if ( !arena ) { - rv = SECFailure; - goto loser; - } - - /* Construct digest info */ - di = SGN_CreateDigestInfo(algtag, digest->data, digest->len); - if (!di) { - rv = SECFailure; - goto loser; - } - - /* Der encode the digest as a DigestInfo */ - rv = DER_Encode(arena, &digder, SGNDigestInfoTemplate, di); - if (rv != SECSuccess) { - goto loser; - } - } else { - digder.data = digest->data; - digder.len = digest->len; - } - - /* - ** Encrypt signature after constructing appropriate PKCS#1 signature - ** block - */ - modulusLen = PK11_SignatureLen(privKey); - result->len = modulusLen; - result->data = (unsigned char*) PORT_Alloc(modulusLen); - - if (result->data == NULL) { - rv = SECFailure; - goto loser; - } - - rv = PK11_Sign(privKey, result, &digder); - if (rv != SECSuccess) { - PORT_Free(result->data); - result->data = NULL; - } - - loser: - SGN_DestroyDigestInfo(di); - if (arena != NULL) { - PORT_FreeArena(arena, PR_FALSE); - } - return rv; -} |