diff options
Diffstat (limited to 'openssl-1.1.0h/crypto/pem/pem_pkey.c')
| -rw-r--r-- | openssl-1.1.0h/crypto/pem/pem_pkey.c | 244 |
1 files changed, 244 insertions, 0 deletions
diff --git a/openssl-1.1.0h/crypto/pem/pem_pkey.c b/openssl-1.1.0h/crypto/pem/pem_pkey.c new file mode 100644 index 0000000..671b374 --- /dev/null +++ b/openssl-1.1.0h/crypto/pem/pem_pkey.c @@ -0,0 +1,244 @@ +/* + * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include <stdio.h> +#include "internal/cryptlib.h" +#include <openssl/buffer.h> +#include <openssl/objects.h> +#include <openssl/evp.h> +#include <openssl/x509.h> +#include <openssl/pkcs12.h> +#include <openssl/pem.h> +#include <openssl/engine.h> +#include <openssl/dh.h> +#include "internal/asn1_int.h" +#include "internal/evp_int.h" + +int pem_check_suffix(const char *pem_str, const char *suffix); + +EVP_PKEY *PEM_read_bio_PrivateKey(BIO *bp, EVP_PKEY **x, pem_password_cb *cb, + void *u) +{ + char *nm = NULL; + const unsigned char *p = NULL; + unsigned char *data = NULL; + long len; + int slen; + EVP_PKEY *ret = NULL; + + if (!PEM_bytes_read_bio(&data, &len, &nm, PEM_STRING_EVP_PKEY, bp, cb, u)) + return NULL; + p = data; + + if (strcmp(nm, PEM_STRING_PKCS8INF) == 0) { + PKCS8_PRIV_KEY_INFO *p8inf; + p8inf = d2i_PKCS8_PRIV_KEY_INFO(NULL, &p, len); + if (!p8inf) + goto p8err; + ret = EVP_PKCS82PKEY(p8inf); + if (x) { + EVP_PKEY_free((EVP_PKEY *)*x); + *x = ret; + } + PKCS8_PRIV_KEY_INFO_free(p8inf); + } else if (strcmp(nm, PEM_STRING_PKCS8) == 0) { + PKCS8_PRIV_KEY_INFO *p8inf; + X509_SIG *p8; + int klen; + char psbuf[PEM_BUFSIZE]; + p8 = d2i_X509_SIG(NULL, &p, len); + if (!p8) + goto p8err; + if (cb) + klen = cb(psbuf, PEM_BUFSIZE, 0, u); + else + klen = PEM_def_callback(psbuf, PEM_BUFSIZE, 0, u); + if (klen <= 0) { + PEMerr(PEM_F_PEM_READ_BIO_PRIVATEKEY, PEM_R_BAD_PASSWORD_READ); + X509_SIG_free(p8); + goto err; + } + p8inf = PKCS8_decrypt(p8, psbuf, klen); + X509_SIG_free(p8); + OPENSSL_cleanse(psbuf, klen); + if (!p8inf) + goto p8err; + ret = EVP_PKCS82PKEY(p8inf); + if (x) { + EVP_PKEY_free((EVP_PKEY *)*x); + *x = ret; + } + PKCS8_PRIV_KEY_INFO_free(p8inf); + } else if ((slen = pem_check_suffix(nm, "PRIVATE KEY")) > 0) { + const EVP_PKEY_ASN1_METHOD *ameth; + ameth = EVP_PKEY_asn1_find_str(NULL, nm, slen); + if (!ameth || !ameth->old_priv_decode) + goto p8err; + ret = d2i_PrivateKey(ameth->pkey_id, x, &p, len); + } + p8err: + if (ret == NULL) + PEMerr(PEM_F_PEM_READ_BIO_PRIVATEKEY, ERR_R_ASN1_LIB); + err: + OPENSSL_free(nm); + OPENSSL_clear_free(data, len); + return (ret); +} + +int PEM_write_bio_PrivateKey(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc, + unsigned char *kstr, int klen, + pem_password_cb *cb, void *u) +{ + if (x->ameth == NULL || x->ameth->priv_encode != NULL) + return PEM_write_bio_PKCS8PrivateKey(bp, x, enc, + (char *)kstr, klen, cb, u); + return PEM_write_bio_PrivateKey_traditional(bp, x, enc, kstr, klen, cb, u); +} + +int PEM_write_bio_PrivateKey_traditional(BIO *bp, EVP_PKEY *x, + const EVP_CIPHER *enc, + unsigned char *kstr, int klen, + pem_password_cb *cb, void *u) +{ + char pem_str[80]; + BIO_snprintf(pem_str, 80, "%s PRIVATE KEY", x->ameth->pem_str); + return PEM_ASN1_write_bio((i2d_of_void *)i2d_PrivateKey, + pem_str, bp, x, enc, kstr, klen, cb, u); +} + +EVP_PKEY *PEM_read_bio_Parameters(BIO *bp, EVP_PKEY **x) +{ + char *nm = NULL; + const unsigned char *p = NULL; + unsigned char *data = NULL; + long len; + int slen; + EVP_PKEY *ret = NULL; + + if (!PEM_bytes_read_bio(&data, &len, &nm, PEM_STRING_PARAMETERS, + bp, 0, NULL)) + return NULL; + p = data; + + if ((slen = pem_check_suffix(nm, "PARAMETERS")) > 0) { + ret = EVP_PKEY_new(); + if (ret == NULL) + goto err; + if (!EVP_PKEY_set_type_str(ret, nm, slen) + || !ret->ameth->param_decode + || !ret->ameth->param_decode(ret, &p, len)) { + EVP_PKEY_free(ret); + ret = NULL; + goto err; + } + if (x) { + EVP_PKEY_free((EVP_PKEY *)*x); + *x = ret; + } + } + err: + if (ret == NULL) + PEMerr(PEM_F_PEM_READ_BIO_PARAMETERS, ERR_R_ASN1_LIB); + OPENSSL_free(nm); + OPENSSL_free(data); + return (ret); +} + +int PEM_write_bio_Parameters(BIO *bp, EVP_PKEY *x) +{ + char pem_str[80]; + if (!x->ameth || !x->ameth->param_encode) + return 0; + + BIO_snprintf(pem_str, 80, "%s PARAMETERS", x->ameth->pem_str); + return PEM_ASN1_write_bio((i2d_of_void *)x->ameth->param_encode, + pem_str, bp, x, NULL, NULL, 0, 0, NULL); +} + +#ifndef OPENSSL_NO_STDIO +EVP_PKEY *PEM_read_PrivateKey(FILE *fp, EVP_PKEY **x, pem_password_cb *cb, + void *u) +{ + BIO *b; + EVP_PKEY *ret; + + if ((b = BIO_new(BIO_s_file())) == NULL) { + PEMerr(PEM_F_PEM_READ_PRIVATEKEY, ERR_R_BUF_LIB); + return (0); + } + BIO_set_fp(b, fp, BIO_NOCLOSE); + ret = PEM_read_bio_PrivateKey(b, x, cb, u); + BIO_free(b); + return (ret); +} + +int PEM_write_PrivateKey(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc, + unsigned char *kstr, int klen, + pem_password_cb *cb, void *u) +{ + BIO *b; + int ret; + + if ((b = BIO_new_fp(fp, BIO_NOCLOSE)) == NULL) { + PEMerr(PEM_F_PEM_WRITE_PRIVATEKEY, ERR_R_BUF_LIB); + return 0; + } + ret = PEM_write_bio_PrivateKey(b, x, enc, kstr, klen, cb, u); + BIO_free(b); + return ret; +} + +#endif + +#ifndef OPENSSL_NO_DH + +/* Transparently read in PKCS#3 or X9.42 DH parameters */ + +DH *PEM_read_bio_DHparams(BIO *bp, DH **x, pem_password_cb *cb, void *u) +{ + char *nm = NULL; + const unsigned char *p = NULL; + unsigned char *data = NULL; + long len; + DH *ret = NULL; + + if (!PEM_bytes_read_bio(&data, &len, &nm, PEM_STRING_DHPARAMS, bp, cb, u)) + return NULL; + p = data; + + if (strcmp(nm, PEM_STRING_DHXPARAMS) == 0) + ret = d2i_DHxparams(x, &p, len); + else + ret = d2i_DHparams(x, &p, len); + + if (ret == NULL) + PEMerr(PEM_F_PEM_READ_BIO_DHPARAMS, ERR_R_ASN1_LIB); + OPENSSL_free(nm); + OPENSSL_free(data); + return ret; +} + +# ifndef OPENSSL_NO_STDIO +DH *PEM_read_DHparams(FILE *fp, DH **x, pem_password_cb *cb, void *u) +{ + BIO *b; + DH *ret; + + if ((b = BIO_new(BIO_s_file())) == NULL) { + PEMerr(PEM_F_PEM_READ_DHPARAMS, ERR_R_BUF_LIB); + return (0); + } + BIO_set_fp(b, fp, BIO_NOCLOSE); + ret = PEM_read_bio_DHparams(b, x, cb, u); + BIO_free(b); + return (ret); +} +# endif + +#endif |