168 lines
4.1 KiB
C
168 lines
4.1 KiB
C
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/* Copyright (c) 2005-2007 Apple Inc. All Rights Reserved. */
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/*
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* DER_Cert.c - support for decoding RSA keys
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*
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* Created Nov. 8 2005 by Doug Mitchell.
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*/
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#include <libDER/DER_Decode.h>
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#include <libDER/DER_Encode.h>
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#include <libDER/DER_Keys.h>
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#include <libDER/asn1Types.h>
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#include <libDER/libDER_config.h>
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#ifndef DER_DECODE_ENABLE
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#error Please define DER_DECODE_ENABLE.
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#endif
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#if DER_DECODE_ENABLE
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/*
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* DERItemSpecs for decoding RSA keys.
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*/
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/* Algorithm Identifier */
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const DERItemSpec DERAlgorithmIdItemSpecs[] =
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{
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{ DER_OFFSET(DERAlgorithmId, oid),
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ASN1_OBJECT_ID,
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DER_DEC_NO_OPTS },
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{ DER_OFFSET(DERAlgorithmId, params),
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0, /* no tag - any */
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DER_DEC_ASN_ANY | DER_DEC_OPTIONAL | DER_DEC_SAVE_DER }
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};
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const DERSize DERNumAlgorithmIdItemSpecs =
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sizeof(DERAlgorithmIdItemSpecs) / sizeof(DERItemSpec);
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/* X509 SubjectPublicKeyInfo */
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const DERItemSpec DERSubjPubKeyInfoItemSpecs[] =
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{
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{ DER_OFFSET(DERSubjPubKeyInfo, algId),
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ASN1_CONSTR_SEQUENCE,
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DER_DEC_NO_OPTS },
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{ DER_OFFSET(DERSubjPubKeyInfo, pubKey),
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ASN1_BIT_STRING,
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DER_DEC_NO_OPTS },
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};
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const DERSize DERNumSubjPubKeyInfoItemSpecs =
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sizeof(DERSubjPubKeyInfoItemSpecs) / sizeof(DERItemSpec);
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/*
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* RSA private key in CRT format
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*/
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const DERItemSpec DERRSAPrivKeyCRTItemSpecs[] =
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{
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/* version, n, e, d - skip */
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{ 0,
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ASN1_INTEGER,
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DER_DEC_SKIP },
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{ 0,
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ASN1_INTEGER,
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DER_DEC_SKIP },
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{ 0,
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ASN1_INTEGER,
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DER_DEC_SKIP },
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{ 0,
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ASN1_INTEGER,
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DER_DEC_SKIP },
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{ DER_OFFSET(DERRSAPrivKeyCRT, p),
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ASN1_INTEGER,
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DER_DEC_NO_OPTS },
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{ DER_OFFSET(DERRSAPrivKeyCRT, q),
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ASN1_INTEGER,
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DER_DEC_NO_OPTS },
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{ DER_OFFSET(DERRSAPrivKeyCRT, dp),
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ASN1_INTEGER,
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DER_DEC_NO_OPTS },
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{ DER_OFFSET(DERRSAPrivKeyCRT, dq),
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ASN1_INTEGER,
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DER_DEC_NO_OPTS },
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{ DER_OFFSET(DERRSAPrivKeyCRT, qInv),
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ASN1_INTEGER,
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DER_DEC_NO_OPTS },
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/* ignore the (optional) rest */
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};
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const DERSize DERNumRSAPrivKeyCRTItemSpecs =
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sizeof(DERRSAPrivKeyCRTItemSpecs) / sizeof(DERItemSpec);
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#endif /* DER_DECODE_ENABLE */
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#if DER_DECODE_ENABLE || DER_ENCODE_ENABLE
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/* RSA public key in PKCS1 format - encode and decode */
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const DERItemSpec DERRSAPubKeyPKCS1ItemSpecs[] =
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{
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{ DER_OFFSET(DERRSAPubKeyPKCS1, modulus),
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ASN1_INTEGER,
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DER_DEC_NO_OPTS | DER_ENC_SIGNED_INT },
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{ DER_OFFSET(DERRSAPubKeyPKCS1, pubExponent),
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ASN1_INTEGER,
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DER_DEC_NO_OPTS | DER_ENC_SIGNED_INT },
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};
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const DERSize DERNumRSAPubKeyPKCS1ItemSpecs =
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sizeof(DERRSAPubKeyPKCS1ItemSpecs) / sizeof(DERItemSpec);
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/* RSA public key in Apple custome format with reciprocal - encode and decode */
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const DERItemSpec DERRSAPubKeyAppleItemSpecs[] =
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{
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{ DER_OFFSET(DERRSAPubKeyApple, modulus),
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ASN1_INTEGER,
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DER_DEC_NO_OPTS | DER_ENC_SIGNED_INT },
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{ DER_OFFSET(DERRSAPubKeyApple, reciprocal),
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ASN1_INTEGER,
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DER_DEC_NO_OPTS | DER_ENC_SIGNED_INT },
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{ DER_OFFSET(DERRSAPubKeyApple, pubExponent),
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ASN1_INTEGER,
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DER_DEC_NO_OPTS | DER_ENC_SIGNED_INT },
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};
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const DERSize DERNumRSAPubKeyAppleItemSpecs =
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sizeof(DERRSAPubKeyAppleItemSpecs) / sizeof(DERItemSpec);
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#endif /* DER_DECODE_ENABLE || DER_ENCODE_ENABLE */
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#ifndef DER_ENCODE_ENABLE
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#error Please define DER_ENCODE_ENABLE.
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#endif
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#if DER_ENCODE_ENABLE
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/* RSA Key Pair, encode only */
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const DERItemSpec DERRSAKeyPairItemSpecs[] =
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{
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{ DER_OFFSET(DERRSAKeyPair, version),
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ASN1_INTEGER,
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DER_ENC_SIGNED_INT },
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{ DER_OFFSET(DERRSAKeyPair, n),
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ASN1_INTEGER,
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DER_ENC_SIGNED_INT },
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{ DER_OFFSET(DERRSAKeyPair, e),
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ASN1_INTEGER,
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DER_ENC_SIGNED_INT },
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{ DER_OFFSET(DERRSAKeyPair, d),
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ASN1_INTEGER,
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DER_ENC_SIGNED_INT },
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{ DER_OFFSET(DERRSAKeyPair, p),
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ASN1_INTEGER,
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DER_ENC_SIGNED_INT },
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{ DER_OFFSET(DERRSAKeyPair, q),
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ASN1_INTEGER,
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DER_ENC_SIGNED_INT },
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{ DER_OFFSET(DERRSAKeyPair, dp),
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ASN1_INTEGER,
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DER_ENC_SIGNED_INT },
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{ DER_OFFSET(DERRSAKeyPair, dq),
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ASN1_INTEGER,
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DER_ENC_SIGNED_INT },
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{ DER_OFFSET(DERRSAKeyPair, qInv),
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ASN1_INTEGER,
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DER_ENC_SIGNED_INT },
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};
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const DERSize DERNumRSAKeyPairItemSpecs =
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sizeof(DERRSAKeyPairItemSpecs) / sizeof(DERItemSpec);
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#endif /* DER_ENCODE_ENABLE */
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