dearsky/pico-openpgp
1
0
Fork 0
Code Issues 10 Pull Requests Actions Packages Projects Releases 15 Wiki Activity

Move EDDSA to another branch.

Browse Source 
Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2025-12-09 16:07:34 +01:00
parent 2a14c771cb
commit b1421e176b
5 changed files with 15 additions and 75 deletions
Download Patch File Download Diff File Expand all files Collapse all files

51
src/openpgp/openpgp.c
View File

@@ -30,9 +30,6 @@
#include "ccid/ccid.h"
#include "otp.h"
#include "do.h"
#ifdef MBEDTLS_EDDSA_C
#include "mbedtls/eddsa.h"
#endif
bool has_pw1 = false;
bool has_pw2 = false;
@@ -573,15 +570,7 @@ int load_private_key_ecdsa(mbedtls_ecp_keypair *ctx, file_t *fkey, bool use_dek)
return PICOKEY_EXEC_ERROR;
}
mbedtls_platform_zeroize(kdata, sizeof(kdata));
#ifdef MBEDTLS_EDDSA_C
if (ctx->grp.id == MBEDTLS_ECP_DP_ED25519 || ctx->grp.id == MBEDTLS_ECP_DP_ED448) {
r = mbedtls_ecp_point_edwards(&ctx->grp, &ctx->Q, &ctx->d, random_gen, NULL);
}
else
#endif
{
r = mbedtls_ecp_mul(&ctx->grp, &ctx->Q, &ctx->d, &ctx->grp.G, random_gen, NULL);
}
r = mbedtls_ecp_mul(&ctx->grp, &ctx->Q, &ctx->d, &ctx->grp.G, random_gen, NULL);
if (r != 0) {
mbedtls_ecdsa_free(ctx);
return PICOKEY_EXEC_ERROR;
@@ -626,14 +615,6 @@ mbedtls_ecp_group_id get_ec_group_id_from_attr(const uint8_t *algo, size_t algo_
else if (memcmp(algorithm_attr_x448 + 2, algo, algo_len) == 0) {
return MBEDTLS_ECP_DP_CURVE448;
}
#ifdef MBEDTLS_EDDSA_C
else if (memcmp(algorithm_attr_ed25519 + 2, algo, algo_len) == 0) {
return MBEDTLS_ECP_DP_ED25519;
}
else if (memcmp(algorithm_attr_ed448 + 2, algo, algo_len) == 0) {
return MBEDTLS_ECP_DP_ED448;
}
#endif
return MBEDTLS_ECP_DP_NONE;
}
@@ -752,26 +733,18 @@ int ecdsa_sign(mbedtls_ecp_keypair *ctx,
size_t *out_len) {
int r = 0;
#ifdef MBEDTLS_EDDSA_C
if (ctx->grp.id == MBEDTLS_ECP_DP_ED25519 || ctx->grp.id == MBEDTLS_ECP_DP_ED448) {
r = mbedtls_eddsa_write_signature(ctx, data, data_len, out, 114, out_len, MBEDTLS_EDDSA_PURE, NULL, 0, random_gen, NULL);
}
else
#endif
{
mbedtls_mpi ri, si;
mbedtls_mpi_init(&ri);
mbedtls_mpi_init(&si);
r = mbedtls_ecdsa_sign(&ctx->grp, &ri, &si, &ctx->d, data, data_len, random_gen, NULL);
if (r == 0) {
size_t plen = (ctx->grp.nbits + 7) / 8;
mbedtls_mpi_write_binary(&ri, out, plen);
mbedtls_mpi_write_binary(&si, out + plen, plen);
*out_len = 2 * plen;
}
mbedtls_mpi_free(&ri);
mbedtls_mpi_free(&si);
mbedtls_mpi ri, si;
mbedtls_mpi_init(&ri);
mbedtls_mpi_init(&si);
r = mbedtls_ecdsa_sign(&ctx->grp, &ri, &si, &ctx->d, data, data_len, random_gen, NULL);
if (r == 0) {
size_t plen = (ctx->grp.nbits + 7) / 8;
mbedtls_mpi_write_binary(&ri, out, plen);
mbedtls_mpi_write_binary(&si, out + plen, plen);
*out_len = 2 * plen;
}
mbedtls_mpi_free(&ri);
mbedtls_mpi_free(&si);
return r;
}