diff options
Diffstat (limited to 'thirdparty/openssl/crypto/asn1/n_pkey.c')
| -rw-r--r-- | thirdparty/openssl/crypto/asn1/n_pkey.c | 345 | 
1 files changed, 345 insertions, 0 deletions
diff --git a/thirdparty/openssl/crypto/asn1/n_pkey.c b/thirdparty/openssl/crypto/asn1/n_pkey.c new file mode 100644 index 0000000000..d5a55146a4 --- /dev/null +++ b/thirdparty/openssl/crypto/asn1/n_pkey.c @@ -0,0 +1,345 @@ +/* crypto/asn1/n_pkey.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to.  The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code.  The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + *    notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + *    notice, this list of conditions and the following disclaimer in the + *    documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + *    must display the following acknowledgement: + *    "This product includes cryptographic software written by + *     Eric Young (eay@cryptsoft.com)" + *    The word 'cryptographic' can be left out if the rouines from the library + *    being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + *    the apps directory (application code) you must include an acknowledgement: + *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed.  i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include <stdio.h> +#include "cryptlib.h" +#ifndef OPENSSL_NO_RSA +# include <openssl/rsa.h> +# include <openssl/objects.h> +# include <openssl/asn1t.h> +# include <openssl/asn1_mac.h> +# include <openssl/evp.h> +# include <openssl/x509.h> + +# ifndef OPENSSL_NO_RC4 + +typedef struct netscape_pkey_st { +    long version; +    X509_ALGOR *algor; +    ASN1_OCTET_STRING *private_key; +} NETSCAPE_PKEY; + +typedef struct netscape_encrypted_pkey_st { +    ASN1_OCTET_STRING *os; +    /* +     * This is the same structure as DigestInfo so use it: although this +     * isn't really anything to do with digests. +     */ +    X509_SIG *enckey; +} NETSCAPE_ENCRYPTED_PKEY; + + +ASN1_BROKEN_SEQUENCE(NETSCAPE_ENCRYPTED_PKEY) = { +        ASN1_SIMPLE(NETSCAPE_ENCRYPTED_PKEY, os, ASN1_OCTET_STRING), +        ASN1_SIMPLE(NETSCAPE_ENCRYPTED_PKEY, enckey, X509_SIG) +} ASN1_BROKEN_SEQUENCE_END(NETSCAPE_ENCRYPTED_PKEY) + +DECLARE_ASN1_FUNCTIONS_const(NETSCAPE_ENCRYPTED_PKEY) +DECLARE_ASN1_ENCODE_FUNCTIONS_const(NETSCAPE_ENCRYPTED_PKEY,NETSCAPE_ENCRYPTED_PKEY) +IMPLEMENT_ASN1_FUNCTIONS_const(NETSCAPE_ENCRYPTED_PKEY) + +ASN1_SEQUENCE(NETSCAPE_PKEY) = { +        ASN1_SIMPLE(NETSCAPE_PKEY, version, LONG), +        ASN1_SIMPLE(NETSCAPE_PKEY, algor, X509_ALGOR), +        ASN1_SIMPLE(NETSCAPE_PKEY, private_key, ASN1_OCTET_STRING) +} ASN1_SEQUENCE_END(NETSCAPE_PKEY) + +DECLARE_ASN1_FUNCTIONS_const(NETSCAPE_PKEY) +DECLARE_ASN1_ENCODE_FUNCTIONS_const(NETSCAPE_PKEY,NETSCAPE_PKEY) +IMPLEMENT_ASN1_FUNCTIONS_const(NETSCAPE_PKEY) + +static RSA *d2i_RSA_NET_2(RSA **a, ASN1_OCTET_STRING *os, +                          int (*cb) (char *buf, int len, const char *prompt, +                                     int verify), int sgckey); + +int i2d_Netscape_RSA(const RSA *a, unsigned char **pp, +                     int (*cb) (char *buf, int len, const char *prompt, +                                int verify)) +{ +    return i2d_RSA_NET(a, pp, cb, 0); +} + +int i2d_RSA_NET(const RSA *a, unsigned char **pp, +                int (*cb) (char *buf, int len, const char *prompt, +                           int verify), int sgckey) +{ +    int i, j, ret = 0; +    int rsalen, pkeylen, olen; +    NETSCAPE_PKEY *pkey = NULL; +    NETSCAPE_ENCRYPTED_PKEY *enckey = NULL; +    unsigned char buf[256], *zz; +    unsigned char key[EVP_MAX_KEY_LENGTH]; +    EVP_CIPHER_CTX ctx; +    EVP_CIPHER_CTX_init(&ctx); + +    if (a == NULL) +        return (0); + +    if ((pkey = NETSCAPE_PKEY_new()) == NULL) +        goto err; +    if ((enckey = NETSCAPE_ENCRYPTED_PKEY_new()) == NULL) +        goto err; +    pkey->version = 0; + +    pkey->algor->algorithm = OBJ_nid2obj(NID_rsaEncryption); +    if ((pkey->algor->parameter = ASN1_TYPE_new()) == NULL) +        goto err; +    pkey->algor->parameter->type = V_ASN1_NULL; + +    rsalen = i2d_RSAPrivateKey(a, NULL); + +    /* +     * Fake some octet strings just for the initial length calculation. +     */ + +    pkey->private_key->length = rsalen; + +    pkeylen = i2d_NETSCAPE_PKEY(pkey, NULL); + +    enckey->enckey->digest->length = pkeylen; + +    enckey->os->length = 11;    /* "private-key" */ + +    enckey->enckey->algor->algorithm = OBJ_nid2obj(NID_rc4); +    if ((enckey->enckey->algor->parameter = ASN1_TYPE_new()) == NULL) +        goto err; +    enckey->enckey->algor->parameter->type = V_ASN1_NULL; + +    if (pp == NULL) { +        olen = i2d_NETSCAPE_ENCRYPTED_PKEY(enckey, NULL); +        NETSCAPE_PKEY_free(pkey); +        NETSCAPE_ENCRYPTED_PKEY_free(enckey); +        return olen; +    } + +    /* Since its RC4 encrypted length is actual length */ +    if ((zz = (unsigned char *)OPENSSL_malloc(rsalen)) == NULL) { +        ASN1err(ASN1_F_I2D_RSA_NET, ERR_R_MALLOC_FAILURE); +        goto err; +    } + +    pkey->private_key->data = zz; +    /* Write out private key encoding */ +    i2d_RSAPrivateKey(a, &zz); + +    if ((zz = OPENSSL_malloc(pkeylen)) == NULL) { +        ASN1err(ASN1_F_I2D_RSA_NET, ERR_R_MALLOC_FAILURE); +        goto err; +    } + +    if (!ASN1_STRING_set(enckey->os, "private-key", -1)) { +        ASN1err(ASN1_F_I2D_RSA_NET, ERR_R_MALLOC_FAILURE); +        goto err; +    } +    enckey->enckey->digest->data = zz; +    i2d_NETSCAPE_PKEY(pkey, &zz); + +    /* Wipe the private key encoding */ +    OPENSSL_cleanse(pkey->private_key->data, rsalen); + +    if (cb == NULL) +        cb = EVP_read_pw_string; +    i = cb((char *)buf, 256, "Enter Private Key password:", 1); +    if (i != 0) { +        ASN1err(ASN1_F_I2D_RSA_NET, ASN1_R_BAD_PASSWORD_READ); +        goto err; +    } +    i = strlen((char *)buf); +    /* If the key is used for SGC the algorithm is modified a little. */ +    if (sgckey) { +        if (!EVP_Digest(buf, i, buf, NULL, EVP_md5(), NULL)) +            goto err; +        memcpy(buf + 16, "SGCKEYSALT", 10); +        i = 26; +    } + +    if (!EVP_BytesToKey(EVP_rc4(), EVP_md5(), NULL, buf, i, 1, key, NULL)) +        goto err; +    OPENSSL_cleanse(buf, 256); + +    /* Encrypt private key in place */ +    zz = enckey->enckey->digest->data; +    if (!EVP_EncryptInit_ex(&ctx, EVP_rc4(), NULL, key, NULL)) +        goto err; +    if (!EVP_EncryptUpdate(&ctx, zz, &i, zz, pkeylen)) +        goto err; +    if (!EVP_EncryptFinal_ex(&ctx, zz + i, &j)) +        goto err; + +    ret = i2d_NETSCAPE_ENCRYPTED_PKEY(enckey, pp); + err: +    EVP_CIPHER_CTX_cleanup(&ctx); +    NETSCAPE_ENCRYPTED_PKEY_free(enckey); +    NETSCAPE_PKEY_free(pkey); +    return (ret); +} + +RSA *d2i_Netscape_RSA(RSA **a, const unsigned char **pp, long length, +                      int (*cb) (char *buf, int len, const char *prompt, +                                 int verify)) +{ +    return d2i_RSA_NET(a, pp, length, cb, 0); +} + +RSA *d2i_RSA_NET(RSA **a, const unsigned char **pp, long length, +                 int (*cb) (char *buf, int len, const char *prompt, +                            int verify), int sgckey) +{ +    RSA *ret = NULL; +    const unsigned char *p; +    NETSCAPE_ENCRYPTED_PKEY *enckey = NULL; + +    p = *pp; + +    enckey = d2i_NETSCAPE_ENCRYPTED_PKEY(NULL, &p, length); +    if (!enckey) { +        ASN1err(ASN1_F_D2I_RSA_NET, ASN1_R_DECODING_ERROR); +        return NULL; +    } + +    if ((enckey->os->length != 11) || (strncmp("private-key", +                                               (char *)enckey->os->data, +                                               11) != 0)) { +        ASN1err(ASN1_F_D2I_RSA_NET, ASN1_R_PRIVATE_KEY_HEADER_MISSING); +        NETSCAPE_ENCRYPTED_PKEY_free(enckey); +        return NULL; +    } +    if (OBJ_obj2nid(enckey->enckey->algor->algorithm) != NID_rc4) { +        ASN1err(ASN1_F_D2I_RSA_NET, ASN1_R_UNSUPPORTED_ENCRYPTION_ALGORITHM); +        goto err; +    } +    if (cb == NULL) +        cb = EVP_read_pw_string; +    if ((ret = d2i_RSA_NET_2(a, enckey->enckey->digest, cb, sgckey)) == NULL) +        goto err; + +    *pp = p; + + err: +    NETSCAPE_ENCRYPTED_PKEY_free(enckey); +    return ret; + +} + +static RSA *d2i_RSA_NET_2(RSA **a, ASN1_OCTET_STRING *os, +                          int (*cb) (char *buf, int len, const char *prompt, +                                     int verify), int sgckey) +{ +    NETSCAPE_PKEY *pkey = NULL; +    RSA *ret = NULL; +    int i, j; +    unsigned char buf[256]; +    const unsigned char *zz; +    unsigned char key[EVP_MAX_KEY_LENGTH]; +    EVP_CIPHER_CTX ctx; +    EVP_CIPHER_CTX_init(&ctx); + +    i = cb((char *)buf, 256, "Enter Private Key password:", 0); +    if (i != 0) { +        ASN1err(ASN1_F_D2I_RSA_NET_2, ASN1_R_BAD_PASSWORD_READ); +        goto err; +    } + +    i = strlen((char *)buf); +    if (sgckey) { +        if (!EVP_Digest(buf, i, buf, NULL, EVP_md5(), NULL)) +            goto err; +        memcpy(buf + 16, "SGCKEYSALT", 10); +        i = 26; +    } + +    if (!EVP_BytesToKey(EVP_rc4(), EVP_md5(), NULL, buf, i, 1, key, NULL)) +        goto err; +    OPENSSL_cleanse(buf, 256); + +    if (!EVP_DecryptInit_ex(&ctx, EVP_rc4(), NULL, key, NULL)) +        goto err; +    if (!EVP_DecryptUpdate(&ctx, os->data, &i, os->data, os->length)) +        goto err; +    if (!EVP_DecryptFinal_ex(&ctx, &(os->data[i]), &j)) +        goto err; +    os->length = i + j; + +    zz = os->data; + +    if ((pkey = d2i_NETSCAPE_PKEY(NULL, &zz, os->length)) == NULL) { +        ASN1err(ASN1_F_D2I_RSA_NET_2, +                ASN1_R_UNABLE_TO_DECODE_RSA_PRIVATE_KEY); +        goto err; +    } + +    zz = pkey->private_key->data; +    if ((ret = d2i_RSAPrivateKey(a, &zz, pkey->private_key->length)) == NULL) { +        ASN1err(ASN1_F_D2I_RSA_NET_2, ASN1_R_UNABLE_TO_DECODE_RSA_KEY); +        goto err; +    } + err: +    EVP_CIPHER_CTX_cleanup(&ctx); +    NETSCAPE_PKEY_free(pkey); +    return (ret); +} + +# endif                         /* OPENSSL_NO_RC4 */ + +#else                           /* !OPENSSL_NO_RSA */ + +# if PEDANTIC +static void *dummy = &dummy; +# endif + +#endif  |