/* $OpenBSD: t_x509.c,v 1.46 2024/08/28 06:17:06 tb Exp $ */ /* 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 #include #include #include #include #include #include #include #include #ifndef OPENSSL_NO_DSA #include #endif #ifndef OPENSSL_NO_EC #include #endif #ifndef OPENSSL_NO_RSA #include #endif #include "evp_local.h" #include "x509_local.h" int X509_print_fp(FILE *fp, X509 *x) { return X509_print_ex_fp(fp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT); } LCRYPTO_ALIAS(X509_print_fp); int X509_print_ex_fp(FILE *fp, X509 *x, unsigned long nmflag, unsigned long cflag) { BIO *b; int ret; if ((b = BIO_new(BIO_s_file())) == NULL) { X509error(ERR_R_BUF_LIB); return (0); } BIO_set_fp(b, fp, BIO_NOCLOSE); ret = X509_print_ex(b, x, nmflag, cflag); BIO_free(b); return (ret); } LCRYPTO_ALIAS(X509_print_ex_fp); int X509_print(BIO *bp, X509 *x) { return X509_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT); } LCRYPTO_ALIAS(X509_print); int X509_print_ex(BIO *bp, X509 *x, unsigned long nmflags, unsigned long cflag) { long l; int ret = 0, i; char *m = NULL, mlch = ' '; int nmindent = 0; X509_CINF *ci; ASN1_INTEGER *bs; EVP_PKEY *pkey = NULL; if ((nmflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) { mlch = '\n'; nmindent = 12; } if (nmflags == X509_FLAG_COMPAT) nmindent = 16; ci = x->cert_info; if (!(cflag & X509_FLAG_NO_HEADER)) { if (BIO_write(bp, "Certificate:\n", 13) <= 0) goto err; if (BIO_write(bp, " Data:\n", 10) <= 0) goto err; } if (!(cflag & X509_FLAG_NO_VERSION)) { l = X509_get_version(x); if (l >= 0 && l <= 2) { if (BIO_printf(bp, "%8sVersion: %ld (0x%lx)\n", "", l + 1, l) <= 0) goto err; } else { if (BIO_printf(bp, "%8sVersion: unknown (%ld)\n", "", l) <= 0) goto err; } } if (!(cflag & X509_FLAG_NO_SERIAL)) { if (BIO_write(bp, " Serial Number:", 22) <= 0) goto err; bs = X509_get_serialNumber(x); l = -1; /* * For historical reasons, non-negative serial numbers are * printed in decimal as long as they fit into a long. Using * ASN1_INTEGER_get_uint64() avoids an error on the stack for * numbers between LONG_MAX and ULONG_MAX. Otherwise fall back * to hexadecimal, also for numbers that are non-conformant * (negative or larger than 2^159 - 1). */ if (bs->length <= sizeof(long) && bs->type == V_ASN1_INTEGER) { uint64_t u64; if (ASN1_INTEGER_get_uint64(&u64, bs) && u64 <= LONG_MAX) l = (long)u64; } if (l >= 0) { if (BIO_printf(bp, " %ld (0x%lx)\n", l, l) <= 0) goto err; } else { const char *neg = ""; if (bs->type == V_ASN1_NEG_INTEGER) neg = " (Negative)"; if (BIO_printf(bp, "\n%12s%s", "", neg) <= 0) goto err; for (i = 0; i < bs->length; i++) { if (BIO_printf(bp, "%02x%c", bs->data[i], ((i + 1 == bs->length) ? '\n' : ':')) <= 0) goto err; } } } if (!(cflag & X509_FLAG_NO_SIGNAME)) { if (X509_signature_print(bp, x->sig_alg, NULL) <= 0) goto err; } if (!(cflag & X509_FLAG_NO_ISSUER)) { if (BIO_printf(bp, " Issuer:%c", mlch) <= 0) goto err; if (X509_NAME_print_ex(bp, X509_get_issuer_name(x), nmindent, nmflags) < (nmflags == X509_FLAG_COMPAT ? 1 : 0)) goto err; if (BIO_write(bp, "\n", 1) <= 0) goto err; } if (!(cflag & X509_FLAG_NO_VALIDITY)) { if (BIO_write(bp, " Validity\n", 17) <= 0) goto err; if (BIO_write(bp, " Not Before: ", 24) <= 0) goto err; if (!ASN1_TIME_print(bp, X509_get_notBefore(x))) goto err; if (BIO_write(bp, "\n Not After : ", 25) <= 0) goto err; if (!ASN1_TIME_print(bp, X509_get_notAfter(x))) goto err; if (BIO_write(bp, "\n", 1) <= 0) goto err; } if (!(cflag & X509_FLAG_NO_SUBJECT)) { if (BIO_printf(bp, " Subject:%c", mlch) <= 0) goto err; if (X509_NAME_print_ex(bp, X509_get_subject_name(x), nmindent, nmflags) < (nmflags == X509_FLAG_COMPAT ? 1 : 0)) goto err; if (BIO_write(bp, "\n", 1) <= 0) goto err; } if (!(cflag & X509_FLAG_NO_PUBKEY)) { if (BIO_write(bp, " Subject Public Key Info:\n", 33) <= 0) goto err; if (BIO_printf(bp, "%12sPublic Key Algorithm: ", "") <= 0) goto err; if (i2a_ASN1_OBJECT(bp, ci->key->algor->algorithm) <= 0) goto err; if (BIO_puts(bp, "\n") <= 0) goto err; pkey = X509_get_pubkey(x); if (pkey == NULL) { BIO_printf(bp, "%12sUnable to load Public Key\n", ""); ERR_print_errors(bp); } else { EVP_PKEY_print_public(bp, pkey, 16, NULL); EVP_PKEY_free(pkey); } } if (!(cflag & X509_FLAG_NO_EXTENSIONS)) X509V3_extensions_print(bp, "X509v3 extensions", ci->extensions, cflag, 8); if (!(cflag & X509_FLAG_NO_SIGDUMP)) { if (X509_signature_print(bp, x->sig_alg, x->signature) <= 0) goto err; } if (!(cflag & X509_FLAG_NO_AUX)) { if (!X509_CERT_AUX_print(bp, x->aux, 0)) goto err; } ret = 1; err: free(m); return (ret); } LCRYPTO_ALIAS(X509_print_ex); int X509_ocspid_print(BIO *bp, X509 *x) { unsigned char *der = NULL; unsigned char *dertmp; int derlen; int i; unsigned char SHA1md[SHA_DIGEST_LENGTH]; /* display the hash of the subject as it would appear in OCSP requests */ if (BIO_printf(bp, " Subject OCSP hash: ") <= 0) goto err; if ((derlen = i2d_X509_NAME(x->cert_info->subject, NULL)) <= 0) goto err; if ((der = dertmp = malloc(derlen)) == NULL) goto err; if (i2d_X509_NAME(x->cert_info->subject, &dertmp) <= 0) goto err; if (!EVP_Digest(der, derlen, SHA1md, NULL, EVP_sha1(), NULL)) goto err; for (i = 0; i < SHA_DIGEST_LENGTH; i++) { if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0) goto err; } free (der); der = NULL; /* display the hash of the public key as it would appear in OCSP requests */ if (BIO_printf(bp, "\n Public key OCSP hash: ") <= 0) goto err; if (!EVP_Digest(x->cert_info->key->public_key->data, x->cert_info->key->public_key->length, SHA1md, NULL, EVP_sha1(), NULL)) goto err; for (i = 0; i < SHA_DIGEST_LENGTH; i++) { if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0) goto err; } BIO_printf(bp, "\n"); return (1); err: free(der); return (0); } LCRYPTO_ALIAS(X509_ocspid_print); int X509_signature_dump(BIO *bp, const ASN1_STRING *sig, int indent) { const unsigned char *s; int i, n; n = sig->length; s = sig->data; for (i = 0; i < n; i++) { if ((i % 18) == 0) { if (BIO_write(bp, "\n", 1) <= 0) return 0; if (BIO_indent(bp, indent, indent) <= 0) return 0; } if (BIO_printf(bp, "%02x%s", s[i], ((i + 1) == n) ? "" : ":") <= 0) return 0; } if (BIO_write(bp, "\n", 1) != 1) return 0; return 1; } LCRYPTO_ALIAS(X509_signature_dump); int X509_signature_print(BIO *bp, const X509_ALGOR *sigalg, const ASN1_STRING *sig) { int sig_nid; if (BIO_puts(bp, " Signature Algorithm: ") <= 0) return 0; if (i2a_ASN1_OBJECT(bp, sigalg->algorithm) <= 0) return 0; sig_nid = OBJ_obj2nid(sigalg->algorithm); if (sig_nid != NID_undef) { int pkey_nid, dig_nid; const EVP_PKEY_ASN1_METHOD *ameth; if (OBJ_find_sigid_algs(sig_nid, &dig_nid, &pkey_nid)) { ameth = EVP_PKEY_asn1_find(NULL, pkey_nid); if (ameth && ameth->sig_print) return ameth->sig_print(bp, sigalg, sig, 9, 0); } } if (sig) return X509_signature_dump(bp, sig, 9); else if (BIO_puts(bp, "\n") <= 0) return 0; return 1; } LCRYPTO_ALIAS(X509_signature_print); int ASN1_TIME_print(BIO *bp, const ASN1_TIME *tm) { if (tm->type == V_ASN1_UTCTIME) return ASN1_UTCTIME_print(bp, tm); if (tm->type == V_ASN1_GENERALIZEDTIME) return ASN1_GENERALIZEDTIME_print(bp, tm); BIO_write(bp, "Bad time value", 14); return (0); } LCRYPTO_ALIAS(ASN1_TIME_print); static const char *mon[12] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" }; int ASN1_GENERALIZEDTIME_print(BIO *bp, const ASN1_GENERALIZEDTIME *tm) { char *v; int gmt = 0; int i; int y = 0, M = 0, d = 0, h = 0, m = 0, s = 0; char *f = ""; int f_len = 0; i = tm->length; v = (char *)tm->data; if (i < 12) goto err; if (v[i-1] == 'Z') gmt = 1; for (i = 0; i < 12; i++) if ((v[i] > '9') || (v[i] < '0')) goto err; y = (v[0] - '0') * 1000 + (v[1] - '0') * 100 + (v[2] - '0') * 10 + (v[3] - '0'); M = (v[4] - '0') * 10 + (v[5] - '0'); if ((M > 12) || (M < 1)) goto err; d = (v[6] - '0') * 10 + (v[7] - '0'); h = (v[8] - '0') * 10 + (v[9] - '0'); m = (v[10] - '0') * 10 + (v[11] - '0'); if (tm->length >= 14 && (v[12] >= '0') && (v[12] <= '9') && (v[13] >= '0') && (v[13] <= '9')) { s = (v[12] - '0') * 10 + (v[13] - '0'); /* Check for fractions of seconds. */ if (tm->length >= 15 && v[14] == '.') { int l = tm->length; f = &v[14]; /* The decimal point. */ f_len = 1; while (14 + f_len < l && f[f_len] >= '0' && f[f_len] <= '9') ++f_len; } } if (BIO_printf(bp, "%s %2d %02d:%02d:%02d%.*s %d%s", mon[M - 1], d, h, m, s, f_len, f, y, (gmt) ? " GMT" : "") <= 0) return (0); else return (1); err: BIO_write(bp, "Bad time value", 14); return (0); } LCRYPTO_ALIAS(ASN1_GENERALIZEDTIME_print); int ASN1_UTCTIME_print(BIO *bp, const ASN1_UTCTIME *tm) { const char *v; int gmt = 0; int i; int y = 0, M = 0, d = 0, h = 0, m = 0, s = 0; i = tm->length; v = (const char *)tm->data; if (i < 10) goto err; if (v[i-1] == 'Z') gmt = 1; for (i = 0; i < 10; i++) if ((v[i] > '9') || (v[i] < '0')) goto err; y = (v[0] - '0') * 10 + (v[1] - '0'); if (y < 50) y += 100; M = (v[2] - '0') * 10 + (v[3] - '0'); if ((M > 12) || (M < 1)) goto err; d = (v[4] - '0') * 10 + (v[5] - '0'); h = (v[6] - '0') * 10 + (v[7] - '0'); m = (v[8] - '0') * 10 + (v[9] - '0'); if (tm->length >=12 && (v[10] >= '0') && (v[10] <= '9') && (v[11] >= '0') && (v[11] <= '9')) s = (v[10] - '0') * 10 + (v[11] - '0'); if (BIO_printf(bp, "%s %2d %02d:%02d:%02d %d%s", mon[M - 1], d, h, m, s, y + 1900, (gmt) ? " GMT" : "") <= 0) return (0); else return (1); err: BIO_write(bp, "Bad time value", 14); return (0); } LCRYPTO_ALIAS(ASN1_UTCTIME_print); int X509_NAME_print(BIO *bp, const X509_NAME *name, int obase) { char *s, *c, *b; int i; int ret = 0; b = X509_NAME_oneline(name, NULL, 0); if (b == NULL) return 0; if (*b == '\0') { free(b); return 1; } s = b + 1; /* skip the first slash */ c = s; for (;;) { if (((*s == '/') && ((s[1] >= 'A') && (s[1] <= 'Z') && ((s[2] == '=') || ((s[2] >= 'A') && (s[2] <= 'Z') && (s[3] == '='))))) || (*s == '\0')) { i = s - c; if (BIO_write(bp, c, i) != i) goto err; c = s + 1; /* skip following slash */ if (*s != '\0') { if (BIO_write(bp, ", ", 2) != 2) goto err; } } if (*s == '\0') break; s++; } ret = 1; if (0) { err: X509error(ERR_R_BUF_LIB); } free(b); return (ret); } LCRYPTO_ALIAS(X509_NAME_print);