121 lines
2.8 KiB
C
121 lines
2.8 KiB
C
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/* Copyright (c) 2005-2007 Apple Inc. All Rights Reserved. */
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/*
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* rsaRawKey.h - Typedefs and declarations for RSA keys in raw format
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*
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* Created Nov. 29 2005 by Doug Mitchell.
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*/
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#include <libgRSA/rsaRawKey.h>
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#include <libGiants/giantExternal.h>
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#include <libGiants/giantMod.h>
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#include <libgRSA/libgRSA_config.h>
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#ifndef RSA_RAW_KEY_ENABLE
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#error Please define RSA_RAW_KEY_ENABLE.
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#endif
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#if RSA_RAW_KEY_ENABLE
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#if RSA_PUB_KEY_ENABLE || RSA_PRIV_KEY_ENABLE
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/* init an lgiant, fill it with incoming bytes */
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static RSAStatus rsaSetGiant(
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lgiant *g,
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unsigned char *c,
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gi_uint16 cLen)
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{
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localGiantAlloc(g);
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if(deserializeGiant(&g->g, c, cLen)) {
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return RSA_BadKeyData;
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}
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return RSA_Success;
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}
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#endif /* RSA_PUB_KEY_ENABLE || RSA_PRIV_KEY_ENABLE */
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#if RSA_PUB_KEY_ENABLE
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/* raw (n, e) in API form --> public RSAGiantKey */
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RSAStatus rsaInitPubGKey(
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const RSAPubKey *apiKey,
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RSAPubGiantKey *pubKey)
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{
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if((apiKey == NULL) || (pubKey == NULL)) {
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return RSA_ParamErr;
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}
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if((apiKey->e == NULL) || (apiKey->n == NULL)) {
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return RSA_IncompleteKey;
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}
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if(rsaSetGiant(&pubKey->n, apiKey->n, apiKey->nLen)) {
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return RSA_BadKeyData;
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}
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if(rsaSetGiant(&pubKey->e, apiKey->e, apiKey->eLen)) {
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return RSA_BadKeyData;
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}
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localGiantAlloc(&pubKey->recip);
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if(apiKey->recip) {
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/* caller provided reciprocal */
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if(deserializeGiant(&pubKey->recip.g, apiKey->recip, apiKey->recipLen)) {
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return RSA_BadKeyData;
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}
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}
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/* else make_recip called lazily when the key is actually used */
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return RSA_Success;
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}
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#endif /* RSA_PUB_KEY_ENABLE */
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#if RSA_PRIV_KEY_ENABLE
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/* init an rsaSgiant, fill it with incoming bytes */
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static RSAStatus rsaSetSGiant(
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rsaSgiant *g,
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unsigned char *c,
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gi_uint16 cLen)
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{
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localSmallGiantAlloc(g);
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if(deserializeGiant(&g->g, c, cLen)) {
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return RSA_BadKeyData;
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}
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return RSA_Success;
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}
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/* raw (p, q, dp, dq, qInv) --> private RSAPrivCRTGiantKey */
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RSAStatus rsaInitPrivGKey(
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const RSAPrivKey *apiKey,
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RSAPrivGiantKey *privKey)
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{
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if((apiKey == NULL) || (privKey == NULL)) {
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return RSA_ParamErr;
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}
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if((apiKey->p == NULL) || (apiKey->q == NULL) || (apiKey->dp == NULL) ||
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(apiKey->dq == NULL) || (apiKey->qInv == NULL)) {
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return RSA_ParamErr;
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}
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if(rsaSetSGiant(&privKey->p, apiKey->p, apiKey->pLen)) {
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return RSA_BadKeyData;
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}
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if(rsaSetSGiant(&privKey->q, apiKey->q, apiKey->qLen)) {
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return RSA_BadKeyData;
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}
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if(rsaSetSGiant(&privKey->dp, apiKey->dp, apiKey->dpLen)) {
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return RSA_BadKeyData;
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}
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if(rsaSetSGiant(&privKey->dq, apiKey->dq, apiKey->dqLen)) {
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return RSA_BadKeyData;
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}
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if(rsaSetSGiant(&privKey->qInv, apiKey->qInv, apiKey->qInvLen)) {
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return RSA_BadKeyData;
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}
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/* pRecip, qRecip evaluated lazily */
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localSmallGiantAlloc(&privKey->pRecip);
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localSmallGiantAlloc(&privKey->qRecip);
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return RSA_Success;
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}
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#endif /* RSA_PRIV_KEY_ENABLE */
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#endif /* RSA_RAW_KEY_ENABLE */
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