121 lines
3.7 KiB
C
121 lines
3.7 KiB
C
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/* Copyright (c) 2005-2007 Apple Inc. All Rights Reserved. */
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/*
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* libgRSA_DER.h - DER encoding/decoding routines
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*/
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#ifndef _LIBGRSA_LIBRSA_DER_H_
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#define _LIBGRSA_LIBRSA_DER_H_
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#include <libgRSA/libgRSA.h>
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#include <libgRSA/libgRSA_config.h>
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#include <libGiants/giantPlatform.h>
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#include <libDER/DER_Encode.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Decode PKCS1 form keys into RSA{Pub,Priv}GiantKey.
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*/
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RSAStatus RSA_DecodePubKey(
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const unsigned char *pkcs1Key,
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gi_uint16 pkcs1KeyLen,
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RSAPubGiantKey *pubKey); /* RETURNED */
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RSAStatus RSA_DecodePrivKey(
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const unsigned char *pkcs1Key,
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gi_uint16 pkcs1KeyLen,
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RSAPrivGiantKey *privKey); /* RETURNED */
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RSAStatus RSA_DecodeKeyPair(
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const unsigned char *pkcs1Key,
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gi_uint16 pkcs1KeyLen,
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RSAFullGiantKey *keyPair); /* RETURNED */
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/*
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* Decode an custom (to this library) public key with reciprocal.
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*/
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RSAStatus RSA_DecodeApplePubKey(
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const unsigned char *aplePubKey,
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gi_uint16 applePubKeyLen,
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RSAPubGiantKey *pubKey); /* RETURNED */
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/*
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* Generated key pair encoding support.
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*/
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#define RSA_HALF_SIZE(keySizeInBytes) ((keySizeInBytes + 1) / 2)
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/*
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* To allocate space on the stack for encoded public and private keys,
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* use these macros to determine the max size needed. They are conservative;
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* they will almost certainly allocate more space than you really
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* end up needing for the encoded keys.
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*/
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#define RSA_ENCODED_PRIV_KEY_SIZE(keySizeInBytes) \
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DER_MAX_ENCODED_SIZE( \
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DER_MAX_ENCODED_SIZE(1) + /* version */ \
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DER_MAX_ENCODED_SIZE(keySizeInBytes) + /* n */ \
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DER_MAX_ENCODED_SIZE(keySizeInBytes) + /* e */ \
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DER_MAX_ENCODED_SIZE(keySizeInBytes) + /* d */ \
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DER_MAX_ENCODED_SIZE(RSA_HALF_SIZE(keySizeInBytes)) + /* p */ \
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DER_MAX_ENCODED_SIZE(RSA_HALF_SIZE(keySizeInBytes)) + /* q */ \
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DER_MAX_ENCODED_SIZE(RSA_HALF_SIZE(keySizeInBytes)) + /* dp */ \
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DER_MAX_ENCODED_SIZE(RSA_HALF_SIZE(keySizeInBytes)) + /* dq */ \
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DER_MAX_ENCODED_SIZE(RSA_HALF_SIZE(keySizeInBytes))) /* qInv */
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#define RSA_ENCODED_PUB_KEY_SIZE(keySizeInBytes) \
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DER_MAX_ENCODED_SIZE( \
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DER_MAX_ENCODED_SIZE(keySizeInBytes) + /* n */ \
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DER_MAX_ENCODED_SIZE(keySizeInBytes)) /* e */
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#define RSA_ENCODED_APPLE_PUB_KEY_SIZE(keySizeInBytes) \
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DER_MAX_ENCODED_SIZE( \
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DER_MAX_ENCODED_SIZE(keySizeInBytes) + /* n */ \
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DER_MAX_ENCODED_SIZE(keySizeInBytes) + /* recip */ \
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GIANT_BYTES_PER_DIGIT + /* recip: one extra digit */ \
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DER_MAX_ENCODED_SIZE(keySizeInBytes)) /* e */
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/*
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* Create PKCS1-formatted public key given a RSAFullGiantKey.
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* The inOutLen param contains the number of bytes available in
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* *pkcs1Key on entry, adn contains the number of bytes actually
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* written to *pkcs1Key on successful return.
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*/
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RSAStatus RSA_EncodePubKey(
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RSAPubGiantKey *giantKey,
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gi_uint8 *pkcs1Key, /* data written here */
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gi_uint32 *inOutLen); /* IN/OUT */
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/*
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* Create a PKCS1-formattted private key given a RSAFullGiantKey.
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* The inOutLen param contains the number of bytes available in
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* *pkcs1Key on entry, adn contains the number of bytes actually
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* written to *pkcs1Key on successful return.
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*/
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RSAStatus RSA_EncodeKeyPair(
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RSAFullGiantKey *keyPair,
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gi_uint8 *pkcs1Key, /* data written here */
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gi_uint32 *inOutLen); /* IN/OUT */
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/*
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* Create a custom (to this library) DER-encoded public key including
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* the reciprocal.
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* The inOutLen param contains the number of bytes available in
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* *pubKey on entry, adn contains the number of bytes actually
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* written to *pkcs1Key on successful return.
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*/
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RSAStatus RSA_EncodeApplePubKey(
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RSAPubGiantKey *giantKey,
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gi_uint8 *pubKey, /* data written here */
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gi_uint32 *inOutLen); /* IN/OUT */
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#ifdef __cplusplus
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}
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#endif
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#endif /* _LIBGRSA_LIBRSA_DER_H_ */
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