diff options
Diffstat (limited to 'openssl-1.1.0h/crypto/ec/eck_prn.c')
| -rw-r--r-- | openssl-1.1.0h/crypto/ec/eck_prn.c | 273 |
1 files changed, 273 insertions, 0 deletions
diff --git a/openssl-1.1.0h/crypto/ec/eck_prn.c b/openssl-1.1.0h/crypto/ec/eck_prn.c new file mode 100644 index 0000000..3e826cb --- /dev/null +++ b/openssl-1.1.0h/crypto/ec/eck_prn.c @@ -0,0 +1,273 @@ +/* + * Copyright 2006-2016 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 + */ + +/* ==================================================================== + * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. + * Portions originally developed by SUN MICROSYSTEMS, INC., and + * contributed to the OpenSSL project. + */ + +#include <stdio.h> +#include "internal/cryptlib.h" +#include <openssl/evp.h> +#include <openssl/ec.h> +#include <openssl/bn.h> + +#ifndef OPENSSL_NO_STDIO +int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off) +{ + BIO *b; + int ret; + + if ((b = BIO_new(BIO_s_file())) == NULL) { + ECerr(EC_F_ECPKPARAMETERS_PRINT_FP, ERR_R_BUF_LIB); + return (0); + } + BIO_set_fp(b, fp, BIO_NOCLOSE); + ret = ECPKParameters_print(b, x, off); + BIO_free(b); + return (ret); +} + +int EC_KEY_print_fp(FILE *fp, const EC_KEY *x, int off) +{ + BIO *b; + int ret; + + if ((b = BIO_new(BIO_s_file())) == NULL) { + ECerr(EC_F_EC_KEY_PRINT_FP, ERR_R_BIO_LIB); + return (0); + } + BIO_set_fp(b, fp, BIO_NOCLOSE); + ret = EC_KEY_print(b, x, off); + BIO_free(b); + return (ret); +} + +int ECParameters_print_fp(FILE *fp, const EC_KEY *x) +{ + BIO *b; + int ret; + + if ((b = BIO_new(BIO_s_file())) == NULL) { + ECerr(EC_F_ECPARAMETERS_PRINT_FP, ERR_R_BIO_LIB); + return (0); + } + BIO_set_fp(b, fp, BIO_NOCLOSE); + ret = ECParameters_print(b, x); + BIO_free(b); + return (ret); +} +#endif + +static int print_bin(BIO *fp, const char *str, const unsigned char *num, + size_t len, int off); + +int ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off) +{ + int ret = 0, reason = ERR_R_BIO_LIB; + BN_CTX *ctx = NULL; + const EC_POINT *point = NULL; + BIGNUM *p = NULL, *a = NULL, *b = NULL, *gen = NULL; + const BIGNUM *order = NULL, *cofactor = NULL; + const unsigned char *seed; + size_t seed_len = 0; + + static const char *gen_compressed = "Generator (compressed):"; + static const char *gen_uncompressed = "Generator (uncompressed):"; + static const char *gen_hybrid = "Generator (hybrid):"; + + if (!x) { + reason = ERR_R_PASSED_NULL_PARAMETER; + goto err; + } + + ctx = BN_CTX_new(); + if (ctx == NULL) { + reason = ERR_R_MALLOC_FAILURE; + goto err; + } + + if (EC_GROUP_get_asn1_flag(x)) { + /* the curve parameter are given by an asn1 OID */ + int nid; + const char *nname; + + if (!BIO_indent(bp, off, 128)) + goto err; + + nid = EC_GROUP_get_curve_name(x); + if (nid == 0) + goto err; + if (BIO_printf(bp, "ASN1 OID: %s", OBJ_nid2sn(nid)) <= 0) + goto err; + if (BIO_printf(bp, "\n") <= 0) + goto err; + nname = EC_curve_nid2nist(nid); + if (nname) { + if (!BIO_indent(bp, off, 128)) + goto err; + if (BIO_printf(bp, "NIST CURVE: %s\n", nname) <= 0) + goto err; + } + } else { + /* explicit parameters */ + int is_char_two = 0; + point_conversion_form_t form; + int tmp_nid = EC_METHOD_get_field_type(EC_GROUP_method_of(x)); + + if (tmp_nid == NID_X9_62_characteristic_two_field) + is_char_two = 1; + + if ((p = BN_new()) == NULL || (a = BN_new()) == NULL || + (b = BN_new()) == NULL) { + reason = ERR_R_MALLOC_FAILURE; + goto err; + } +#ifndef OPENSSL_NO_EC2M + if (is_char_two) { + if (!EC_GROUP_get_curve_GF2m(x, p, a, b, ctx)) { + reason = ERR_R_EC_LIB; + goto err; + } + } else /* prime field */ +#endif + { + if (!EC_GROUP_get_curve_GFp(x, p, a, b, ctx)) { + reason = ERR_R_EC_LIB; + goto err; + } + } + + if ((point = EC_GROUP_get0_generator(x)) == NULL) { + reason = ERR_R_EC_LIB; + goto err; + } + order = EC_GROUP_get0_order(x); + cofactor = EC_GROUP_get0_cofactor(x); + if (order == NULL) { + reason = ERR_R_EC_LIB; + goto err; + } + + form = EC_GROUP_get_point_conversion_form(x); + + if ((gen = EC_POINT_point2bn(x, point, form, NULL, ctx)) == NULL) { + reason = ERR_R_EC_LIB; + goto err; + } + + if ((seed = EC_GROUP_get0_seed(x)) != NULL) + seed_len = EC_GROUP_get_seed_len(x); + + if (!BIO_indent(bp, off, 128)) + goto err; + + /* print the 'short name' of the field type */ + if (BIO_printf(bp, "Field Type: %s\n", OBJ_nid2sn(tmp_nid)) + <= 0) + goto err; + + if (is_char_two) { + /* print the 'short name' of the base type OID */ + int basis_type = EC_GROUP_get_basis_type(x); + if (basis_type == 0) + goto err; + + if (!BIO_indent(bp, off, 128)) + goto err; + + if (BIO_printf(bp, "Basis Type: %s\n", + OBJ_nid2sn(basis_type)) <= 0) + goto err; + + /* print the polynomial */ + if ((p != NULL) && !ASN1_bn_print(bp, "Polynomial:", p, NULL, + off)) + goto err; + } else { + if ((p != NULL) && !ASN1_bn_print(bp, "Prime:", p, NULL, off)) + goto err; + } + if ((a != NULL) && !ASN1_bn_print(bp, "A: ", a, NULL, off)) + goto err; + if ((b != NULL) && !ASN1_bn_print(bp, "B: ", b, NULL, off)) + goto err; + if (form == POINT_CONVERSION_COMPRESSED) { + if ((gen != NULL) && !ASN1_bn_print(bp, gen_compressed, gen, + NULL, off)) + goto err; + } else if (form == POINT_CONVERSION_UNCOMPRESSED) { + if ((gen != NULL) && !ASN1_bn_print(bp, gen_uncompressed, gen, + NULL, off)) + goto err; + } else { /* form == POINT_CONVERSION_HYBRID */ + + if ((gen != NULL) && !ASN1_bn_print(bp, gen_hybrid, gen, + NULL, off)) + goto err; + } + if ((order != NULL) && !ASN1_bn_print(bp, "Order: ", order, + NULL, off)) + goto err; + if ((cofactor != NULL) && !ASN1_bn_print(bp, "Cofactor: ", cofactor, + NULL, off)) + goto err; + if (seed && !print_bin(bp, "Seed:", seed, seed_len, off)) + goto err; + } + ret = 1; + err: + if (!ret) + ECerr(EC_F_ECPKPARAMETERS_PRINT, reason); + BN_free(p); + BN_free(a); + BN_free(b); + BN_free(gen); + BN_CTX_free(ctx); + return (ret); +} + +static int print_bin(BIO *fp, const char *name, const unsigned char *buf, + size_t len, int off) +{ + size_t i; + char str[128 + 1 + 4]; + + if (buf == NULL) + return 1; + if (off > 0) { + if (off > 128) + off = 128; + memset(str, ' ', off); + if (BIO_write(fp, str, off) <= 0) + return 0; + } else { + off = 0; + } + + if (BIO_printf(fp, "%s", name) <= 0) + return 0; + + for (i = 0; i < len; i++) { + if ((i % 15) == 0) { + str[0] = '\n'; + memset(&(str[1]), ' ', off + 4); + if (BIO_write(fp, str, off + 1 + 4) <= 0) + return 0; + } + if (BIO_printf(fp, "%02x%s", buf[i], ((i + 1) == len) ? "" : ":") <= + 0) + return 0; + } + if (BIO_write(fp, "\n", 1) <= 0) + return 0; + + return 1; +} |