354 lines
10 KiB
C
354 lines
10 KiB
C
/* asn.h
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*
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* Copyright (C) 2006-2011 Sawtooth Consulting Ltd.
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*
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* This file is part of CyaSSL.
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*
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* CyaSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* CyaSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#ifndef CTAO_CRYPT_ASN_H
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#define CTAO_CRYPT_ASN_H
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#include "types.h"
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#include "ctc_rsa.h"
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#include "ctc_dh.h"
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#include "ctc_dsa.h"
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#include "ctc_sha.h"
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#ifdef HAVE_ECC
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#include "ctc_ecc.h"
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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enum {
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ISSUER = 0,
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SUBJECT = 1,
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SERIAL_SIZE = 8,
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EXTERNAL_SERIAL_SIZE = 32,
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BEFORE = 0,
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AFTER = 1
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};
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/* ASN Tags */
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enum ASN_Tags {
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ASN_INTEGER = 0x02,
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ASN_BIT_STRING = 0x03,
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ASN_OCTET_STRING = 0x04,
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ASN_TAG_NULL = 0x05,
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ASN_OBJECT_ID = 0x06,
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ASN_SEQUENCE = 0x10,
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ASN_SET = 0x11,
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ASN_UTC_TIME = 0x17,
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ASN_GENERALIZED_TIME = 0x18,
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ASN_LONG_LENGTH = 0x80
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};
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enum ASN_Flags{
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ASN_CONSTRUCTED = 0x20,
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ASN_CONTEXT_SPECIFIC = 0x80
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};
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enum DN_Tags {
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ASN_COMMON_NAME = 0x03, /* CN */
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ASN_SUR_NAME = 0x04, /* SN */
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ASN_COUNTRY_NAME = 0x06, /* C */
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ASN_LOCALITY_NAME = 0x07, /* L */
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ASN_STATE_NAME = 0x08, /* ST */
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ASN_ORG_NAME = 0x0a, /* O */
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ASN_ORGUNIT_NAME = 0x0b /* OU */
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};
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enum PBES {
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PBE_MD5_DES = 0,
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PBE_SHA1_DES = 1,
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PBE_SHA1_DES3 = 2,
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PBE_SHA1_RC4_128 = 3,
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PBES2 = 13 /* algo ID */
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};
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enum ENCRYPTION_TYPES {
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DES_TYPE = 0,
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DES3_TYPE = 1,
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RC4_TYPE = 2
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};
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enum Misc_ASN {
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ASN_NAME_MAX = 256,
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MAX_SALT_SIZE = 64, /* MAX PKCS Salt length */
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MAX_IV_SIZE = 64, /* MAX PKCS Iv length */
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MAX_KEY_SIZE = 64, /* MAX PKCS Key length */
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PKCS5 = 5, /* PKCS oid tag */
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PKCS5v2 = 6, /* PKCS #5 v2.0 */
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PKCS12 = 12, /* PKCS #12 */
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MAX_UNICODE_SZ = 256,
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SHA_SIZE = 20,
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RSA_INTS = 8, /* RSA ints in private key */
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MIN_DATE_SIZE = 13,
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MAX_DATE_SIZE = 32,
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ASN_GEN_TIME_SZ = 15, /* 7 numbers * 2 + Zulu tag */
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MAX_ENCODED_SIG_SZ = 512,
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MAX_SIG_SZ = 256,
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MAX_ALGO_SZ = 20,
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MAX_SEQ_SZ = 5, /* enum(seq | con) + length(4) */
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MAX_SET_SZ = 5, /* enum(set | con) + length(4) */
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MAX_VERSION_SZ = 5, /* enum + id + version(byte) + (header(2))*/
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MAX_ENCODED_DIG_SZ = 73, /* sha512 + enum(bit or octet) + legnth(4) */
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MAX_RSA_INT_SZ = 517, /* RSA raw sz 4096 for bits + tag + len(4) */
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MAX_NTRU_KEY_SZ = 610, /* NTRU 112 bit public key */
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MAX_NTRU_ENC_SZ = 628, /* NTRU 112 bit DER public encoding */
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MAX_RSA_E_SZ = 16, /* Max RSA public e size */
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MAX_PUBLIC_KEY_SZ = MAX_NTRU_ENC_SZ + MAX_ALGO_SZ + MAX_SEQ_SZ * 2,
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/* use bigger NTRU size */
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MAX_LENGTH_SZ = 4
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};
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enum Oid_Types {
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hashType = 0,
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sigType = 1,
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keyType = 2
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};
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enum Sig_Sum {
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SHAwDSA = 517,
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MD2wRSA = 646,
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MD5wRSA = 648,
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SHAwRSA = 649,
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SHAwECDSA = 520,
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SHA256wRSA = 655,
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SHA256wECDSA = 524
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};
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enum Hash_Sum {
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MD2h = 646,
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MD5h = 649,
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SHAh = 88,
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SHA256h = 414
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};
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enum Key_Sum {
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DSAk = 515,
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RSAk = 645,
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NTRUk = 364,
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ECDSAk = 518
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};
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enum Ecc_Sum {
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ECC_256R1 = 526,
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ECC_384R1 = 210,
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ECC_521R1 = 211,
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ECC_160R1 = 184,
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ECC_192R1 = 520,
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ECC_224R1 = 209
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};
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enum KDF_Sum {
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PBKDF2_OID = 660
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};
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/* Certificate file Type */
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enum CertType {
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CERT_TYPE = 0,
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PRIVATEKEY_TYPE,
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CA_TYPE
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};
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enum VerifyType {
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NO_VERIFY = 0,
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VERIFY = 1
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};
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typedef struct DecodedCert {
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byte* publicKey;
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word32 pubKeySize;
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int pubKeyStored;
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word32 certBegin; /* offset to start of cert */
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word32 sigIndex; /* offset to start of signature */
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word32 sigLength; /* length of signature */
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word32 signatureOID; /* sum of algorithm object id */
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word32 keyOID; /* sum of key algo object id */
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byte subjectHash[SHA_SIZE]; /* hash of all Names */
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byte issuerHash[SHA_SIZE]; /* hash of all Names */
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byte* signature; /* not owned, points into raw cert */
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char* subjectCN; /* CommonName */
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int subjectCNLen;
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char issuer[ASN_NAME_MAX]; /* full name including common name */
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char subject[ASN_NAME_MAX]; /* full name including common name */
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int verify; /* Default to yes, but could be off */
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byte* source; /* byte buffer holder cert, NOT owner */
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word32 srcIdx; /* current offset into buffer */
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void* heap; /* for user memory overrides */
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byte serial[EXTERNAL_SERIAL_SIZE]; /* raw serial number */
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int serialSz; /* raw serial bytes stored */
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#ifdef CYASSL_CERT_GEN
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/* easy access to sujbect info for other sign */
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char* subjectSN;
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int subjectSNLen;
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char* subjectC;
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int subjectCLen;
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char* subjectL;
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int subjectLLen;
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char* subjectST;
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int subjectSTLen;
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char* subjectO;
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int subjectOLen;
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char* subjectOU;
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int subjectOULen;
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char* subjectEmail;
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int subjectEmailLen;
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#endif /* CYASSL_CERT_GEN */
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} DecodedCert;
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typedef struct Signer Signer;
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/* CA Signers */
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struct Signer {
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byte* publicKey;
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word32 pubKeySize;
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word32 keyOID; /* key type */
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char* name; /* common name */
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byte hash[SHA_DIGEST_SIZE]; /* sha hash of names in certificate */
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Signer* next;
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};
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void InitDecodedCert(DecodedCert*, byte*, void*);
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void FreeDecodedCert(DecodedCert*);
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int ParseCert(DecodedCert*, word32, int type, int verify, Signer* signer);
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int ParseCertRelative(DecodedCert*, word32, int type, int verify,
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Signer* signer);
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word32 EncodeSignature(byte* out, const byte* digest, word32 digSz,int hashOID);
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Signer* MakeSigner(void*);
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void FreeSigners(Signer*, void*);
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int RsaPrivateKeyDecode(const byte* input, word32* inOutIdx, RsaKey*, word32);
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int RsaPublicKeyDecode(const byte* input, word32* inOutIdx, RsaKey*, word32);
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int ToTraditional(byte* buffer, word32 length);
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int ToTraditionalEnc(byte* buffer, word32 length, const char*, int);
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#ifndef NO_DH
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int DhKeyDecode(const byte* input, word32* inOutIdx, DhKey* key, word32);
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int DhSetKey(DhKey* key, const byte* p, word32 pSz, const byte* g, word32 gSz);
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#endif
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#ifndef NO_DSA
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int DsaPublicKeyDecode(const byte* input, word32* inOutIdx, DsaKey*, word32);
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int DsaPrivateKeyDecode(const byte* input, word32* inOutIdx, DsaKey*, word32);
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#endif
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#ifdef CYASSL_KEY_GEN
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int RsaKeyToDer(RsaKey*, byte* output, word32 inLen);
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#endif
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#ifdef HAVE_ECC
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/* ASN sig helpers */
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int StoreECC_DSA_Sig(byte* out, word32* outLen, mp_int* r, mp_int* s);
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int DecodeECC_DSA_Sig(const byte* sig, word32 sigLen, mp_int* r, mp_int* s);
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/* private key helpers */
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int EccPrivateKeyDecode(const byte* input,word32* inOutIdx,ecc_key*,word32);
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#endif
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#if defined(CYASSL_KEY_GEN) || defined(CYASSL_CERT_GEN)
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int DerToPem(const byte* der, word32 derSz, byte* output, word32 outputSz,
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int type);
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#endif
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#ifdef CYASSL_CERT_GEN
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enum cert_enums {
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NAME_SIZE = 64,
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NAME_ENTRIES = 8,
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JOINT_LEN = 2,
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EMAIL_JOINT_LEN = 9,
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RSA_KEY = 10,
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NTRU_KEY = 11
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};
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typedef struct CertName {
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char country[NAME_SIZE];
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char state[NAME_SIZE];
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char locality[NAME_SIZE];
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char sur[NAME_SIZE];
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char org[NAME_SIZE];
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char unit[NAME_SIZE];
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char commonName[NAME_SIZE];
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char email[NAME_SIZE]; /* !!!! email has to be last !!!! */
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} CertName;
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/* for user to fill for certificate generation */
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typedef struct Cert {
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int version; /* x509 version */
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byte serial[SERIAL_SIZE]; /* serial number */
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int sigType; /* signature algo type */
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CertName issuer; /* issuer info */
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int daysValid; /* validity days */
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int selfSigned; /* self signed flag */
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CertName subject; /* subject info */
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/* internal use only */
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int bodySz; /* pre sign total size */
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int keyType; /* public key type of subject */
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} Cert;
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/* Initialize and Set Certficate defaults:
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version = 3 (0x2)
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serial = 0 (Will be randomly generated)
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sigType = MD5_WITH_RSA
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issuer = blank
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daysValid = 500
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selfSigned = 1 (true) use subject as issuer
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subject = blank
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keyType = RSA_KEY (default)
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*/
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void InitCert(Cert*);
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int MakeCert(Cert*, byte* derBuffer, word32 derSz, RsaKey*, RNG*);
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int SignCert(Cert*, byte* derBuffer, word32 derSz, RsaKey*, RNG*);
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int MakeSelfCert(Cert*, byte* derBuffer, word32 derSz, RsaKey*, RNG*);
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int SetIssuer(Cert*, const char*);
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#ifdef HAVE_NTRU
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int MakeNtruCert(Cert*, byte* derBuffer, word32 derSz, const byte* ntruKey,
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word16 keySz, RNG*);
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#endif
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#endif /* CYASSL_CERT_GEN */
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* CTAO_CRYPT_ASN_H */
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