47 lines
1.2 KiB
C
47 lines
1.2 KiB
C
/* LibTomCrypt, modular cryptographic library -- Tom St Denis */
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/* SPDX-License-Identifier: Unlicense */
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#include "tomcrypt_private.h"
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/**
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@file ed25519_import_raw.c
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Set the parameters of an Ed25519 key, Steffen Jaeckel
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*/
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#ifdef LTC_CURVE25519
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/**
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Set the parameters of an Ed25519 key
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@param in The key
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@param inlen The length of the key
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@param which Which type of key (PK_PRIVATE or PK_PUBLIC)
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@param key [out] Destination of the key
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@return CRYPT_OK if successful
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*/
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int ed25519_import_raw(const unsigned char *in, unsigned long inlen, int which, curve25519_key *key)
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{
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LTC_ARGCHK(in != NULL);
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LTC_ARGCHK(key != NULL);
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if (which == PK_PRIVATE) {
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LTC_ARGCHK(inlen == 32uL || inlen == 64uL);
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XMEMCPY(key->priv, in, sizeof(key->priv));
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if (inlen == 32) {
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tweetnacl_crypto_sk_to_pk(key->pub, key->priv);
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} else {
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XMEMCPY(key->pub, in + 32, sizeof(key->pub));
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}
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} else if (which == PK_PUBLIC) {
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LTC_ARGCHK(inlen == 32uL);
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XMEMCPY(key->pub, in, sizeof(key->pub));
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} else {
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return CRYPT_INVALID_ARG;
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}
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key->pka = LTC_PKA_ED25519;
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key->type = which;
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return CRYPT_OK;
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}
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#endif
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