Delete bundled copy of NSS and replace with README.

nss/lib/cryptohi/secsign.c

Index: nss/lib/cryptohi/secsign.c
diff --git a/nss/lib/cryptohi/secsign.c b/nss/lib/cryptohi/secsign.c
deleted file mode 100644
index 0243c2648239f92bf903dfd173089485733c6743..0000000000000000000000000000000000000000
--- a/nss/lib/cryptohi/secsign.c
+++ /dev/null
@@ -1,510 +0,0 @@
-/*
- * Signature stuff.
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#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"
-#include "keyi.h"
-
-struct SGNContextStr {
-    SECOidTag signalg;
-    SECOidTag hashalg;
-    void *hashcx;
-    const SECHashObject *hashobj;
-    SECKEYPrivateKey *key;
-};
-
-SGNContext *
-SGN_NewContext(SECOidTag alg, SECKEYPrivateKey *key)
-{
-    SGNContext *cx;
-    SECOidTag hashalg, signalg;
-    KeyType keyType;
-    SECStatus rv;
-
-    /* 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_SHA1_RSA_PKCS and/or CKM_MD5_RSA_PKCS.
-     */
-    /* we have a private key, not a public key, so don't pass it in */
-    rv = sec_DecodeSigAlg(NULL, alg, NULL, &signalg, &hashalg);
-    if (rv != SECSuccess) {
-        PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
-        return 0;
-    }
-    keyType = seckey_GetKeyType(signalg);
-
-    /* verify our key type */
-    if (key->keyType != keyType &&
-        !((key->keyType == dsaKey) && (keyType == fortezzaKey))) {
-        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;
-    }
-
-    cx->hashobj = HASH_GetHashObjectByOidTag(cx->hashalg);
-    if (!cx->hashobj)
-        return SECFailure; /* error code is already set */
-
-    cx->hashcx = (*cx->hashobj->create)();
-    if (cx->hashcx == NULL)
-        return SECFailure;
-
-    (*cx->hashobj->begin)(cx->hashcx);
-    return SECSuccess;
-}
-
-SECStatus
-SGN_Update(SGNContext *cx, const unsigned char *input, unsigned int inputLen)
-{
-    if (cx->hashcx == NULL) {
-        PORT_SetError(SEC_ERROR_INVALID_ARGS);
-        return SECFailure;
-    }
-    (*cx->hashobj->update)(cx->hashcx, input, inputLen);
-    return SECSuccess;
-}
-
-/* XXX Old template; want to expunge it eventually. */
-static DERTemplate SECAlgorithmIDTemplate[] = {
-    { DER_SEQUENCE,
-      0, NULL, sizeof(SECAlgorithmID) },
-    { DER_OBJECT_ID,
-      offsetof(SECAlgorithmID, algorithm) },
-    { DER_OPTIONAL | DER_ANY,
-      offsetof(SECAlgorithmID, parameters) },
-    { 0 }
-};
-
-/*
- * XXX OLD Template.  Once all uses have been switched over to new one,
- * remove this.
- */
-static DERTemplate SGNDigestInfoTemplate[] = {
-    { DER_SEQUENCE,
-      0, NULL, sizeof(SGNDigestInfo) },
-    { DER_INLINE,
-      offsetof(SGNDigestInfo, digestAlgorithm),
-      SECAlgorithmIDTemplate },
-    { DER_OCTET_STRING,
-      offsetof(SGNDigestInfo, digest) },
-    { 0 }
-};
-
-SECStatus
-SGN_End(SGNContext *cx, SECItem *result)
-{
-    unsigned char digest[HASH_LENGTH_MAX];
-    unsigned part1;
-    int signatureLen;
-    SECStatus rv;
-    SECItem digder, sigitem;
-    PLArenaPool *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);
-    if (signatureLen <= 0) {
-        PORT_SetError(SEC_ERROR_INVALID_KEY);
-        rv = SECFailure;
-        goto loser;
-    }
-    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;
-        goto loser;
-    }
-
-    if ((cx->signalg == SEC_OID_ANSIX9_DSA_SIGNATURE) ||
-        (cx->signalg == SEC_OID_ANSIX962_EC_PUBLIC_KEY)) {
-        /* DSAU_EncodeDerSigWithLen works for DSA and ECDSA */
-        rv = DSAU_EncodeDerSigWithLen(result, &sigitem, sigitem.len);
-        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, const 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;
-}
-
-/************************************************************************/
-
-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 }
-    };
-
-SEC_ASN1_MKSUB(SECOID_AlgorithmIDTemplate)
-
-const SEC_ASN1Template CERT_SignedDataTemplate[] =
-    {
-      { SEC_ASN1_SEQUENCE,
-        0, NULL, sizeof(CERTSignedData) },
-      { SEC_ASN1_ANY,
-        offsetof(CERTSignedData, data) },
-      { SEC_ASN1_INLINE | SEC_ASN1_XTRN,
-        offsetof(CERTSignedData, signatureAlgorithm),
-        SEC_ASN1_SUB(SECOID_AlgorithmIDTemplate) },
-      { SEC_ASN1_BIT_STRING,
-        offsetof(CERTSignedData, signature) },
-      { 0 }
-    };
-
-SEC_ASN1_CHOOSER_IMPLEMENT(CERT_SignedDataTemplate)
-
-SECStatus
-SEC_DerSignData(PLArenaPool *arena, SECItem *result,
-                const 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:
-                /* get Signature length (= q_len*2) and work from there */
-                switch (PK11_SignatureLen(pk)) {
-                    case 448:
-                        algID = SEC_OID_NIST_DSA_SIGNATURE_WITH_SHA224_DIGEST;
-                        break;
-                    case 512:
-                        algID = SEC_OID_NIST_DSA_SIGNATURE_WITH_SHA256_DIGEST;
-                        break;
-                    default:
-                        algID = SEC_OID_ANSIX9_DSA_SIGNATURE_WITH_SHA1_DIGEST;
-                        break;
-                }
-                break;
-            case ecKey:
-                algID = SEC_OID_ANSIX962_ECDSA_SIGNATURE_WITH_SHA1_DIGEST;
-                break;
-            default:
-                PORT_SetError(SEC_ERROR_INVALID_KEY);
-                return SECFailure;
-        }
-    }
-
-    /* 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 = (unsigned char *)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)
-{
-    int modulusLen;
-    SECStatus rv;
-    SECItem digder;
-    PLArenaPool *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);
-    if (modulusLen <= 0) {
-        PORT_SetError(SEC_ERROR_INVALID_KEY);
-        rv = SECFailure;
-        goto loser;
-    }
-    result->len = modulusLen;
-    result->data = (unsigned char *)PORT_Alloc(modulusLen);
-    result->type = siBuffer;
-
-    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;
-}
-
-SECOidTag
-SEC_GetSignatureAlgorithmOidTag(KeyType keyType, SECOidTag hashAlgTag)
-{
-    SECOidTag sigTag = SEC_OID_UNKNOWN;
-
-    switch (keyType) {
-        case rsaKey:
-            switch (hashAlgTag) {
-                case SEC_OID_MD2:
-                    sigTag = SEC_OID_PKCS1_MD2_WITH_RSA_ENCRYPTION;
-                    break;
-                case SEC_OID_MD5:
-                    sigTag = SEC_OID_PKCS1_MD5_WITH_RSA_ENCRYPTION;
-                    break;
-                case SEC_OID_SHA1:
-                    sigTag = SEC_OID_PKCS1_SHA1_WITH_RSA_ENCRYPTION;
-                    break;
-                case SEC_OID_SHA224:
-                    sigTag = SEC_OID_PKCS1_SHA224_WITH_RSA_ENCRYPTION;
-                    break;
-                case SEC_OID_UNKNOWN: /* default for RSA if not specified */
-                case SEC_OID_SHA256:
-                    sigTag = SEC_OID_PKCS1_SHA256_WITH_RSA_ENCRYPTION;
-                    break;
-                case SEC_OID_SHA384:
-                    sigTag = SEC_OID_PKCS1_SHA384_WITH_RSA_ENCRYPTION;
-                    break;
-                case SEC_OID_SHA512:
-                    sigTag = SEC_OID_PKCS1_SHA512_WITH_RSA_ENCRYPTION;
-                    break;
-                default:
-                    break;
-            }
-            break;
-        case dsaKey:
-            switch (hashAlgTag) {
-                case SEC_OID_UNKNOWN: /* default for DSA if not specified */
-                case SEC_OID_SHA1:
-                    sigTag = SEC_OID_ANSIX9_DSA_SIGNATURE_WITH_SHA1_DIGEST;
-                    break;
-                case SEC_OID_SHA224:
-                    sigTag = SEC_OID_NIST_DSA_SIGNATURE_WITH_SHA224_DIGEST;
-                    break;
-                case SEC_OID_SHA256:
-                    sigTag = SEC_OID_NIST_DSA_SIGNATURE_WITH_SHA256_DIGEST;
-                    break;
-                default:
-                    break;
-            }
-            break;
-        case ecKey:
-            switch (hashAlgTag) {
-                case SEC_OID_UNKNOWN: /* default for ECDSA if not specified */
-                case SEC_OID_SHA1:
-                    sigTag = SEC_OID_ANSIX962_ECDSA_SHA1_SIGNATURE;
-                    break;
-                case SEC_OID_SHA224:
-                    sigTag = SEC_OID_ANSIX962_ECDSA_SHA224_SIGNATURE;
-                    break;
-                case SEC_OID_SHA256:
-                    sigTag = SEC_OID_ANSIX962_ECDSA_SHA256_SIGNATURE;
-                    break;
-                case SEC_OID_SHA384:
-                    sigTag = SEC_OID_ANSIX962_ECDSA_SHA384_SIGNATURE;
-                    break;
-                case SEC_OID_SHA512:
-                    sigTag = SEC_OID_ANSIX962_ECDSA_SHA512_SIGNATURE;
-                    break;
-                default:
-                    break;
-            }
-        default:
-            break;
-    }
-    return sigTag;
-}