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Add EdDSA support as a conditional build.

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Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2025-02-21 20:29:42 +01:00
parent ddb6b4b936
commit 6de499e435
3 changed files with 17 additions and 4 deletions
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14
src/openpgp/openpgp.c
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@@ -30,7 +30,9 @@
#include "ccid/ccid.h"
#include "otp.h"
#include "do.h"
#ifdef MBEDTLS_EDDSA_C
#include "mbedtls/eddsa.h"
#endif
uint8_t PICO_PRODUCT = 3;
@@ -573,10 +575,13 @@ 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) {
r = mbedtls_ecp_point_edwards(&ctx->grp, &ctx->Q, &ctx->d, random_gen, NULL);
}
else {
else
#endif
{
r = mbedtls_ecp_mul(&ctx->grp, &ctx->Q, &ctx->d, &ctx->grp.G, random_gen, NULL);
}
if (r != 0) {
@@ -623,9 +628,11 @@ 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;
}
#endif
return MBEDTLS_ECP_DP_NONE;
}
@@ -744,10 +751,13 @@ 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) {
r = mbedtls_eddsa_write_signature(ctx, data, data_len, out, 64, out_len, MBEDTLS_EDDSA_PURE, NULL, 0, random_gen, NULL);
}
else {
else
#endif
{
mbedtls_mpi ri, si;
mbedtls_mpi_init(&ri);
mbedtls_mpi_init(&si);