tcatm/ecdsautils

This project moved to https://github.com/freifunk-gluon/ecdsautils

ecdsautils's Issues

Refactor reusable library out of ecdsautil

Ticket to track refactoring.

Current plan: create a library libecdsautil with a header libecdsautil/ecdsa.h. Proposed API:

typedef struct _ecdsa_signature {
  ecc_int256_t r;
  ecc_int256_t s;
} ecdsa_signature_t;

typedef struct _ecdsa_verify_context {
  ecc_25519_work_t s1;
  ecc_int256_t u2;
  ecc_int256_t r;
} ecdsa_verify_context_t;

bool ecdsa_is_valid_pubkey(const ecc_25519_work_t *pubkey);

void ecdsa_sign_legacy(ecdsa_signature_t *signature, const ecc_int256_t *hash, const ecc_int256_t *secret);

void ecdsa_verify_prepare_legacy(ecdsa_verify_context_t *ctx, const ecc_int256_t *hash, const ecdsa_signature_t *signature);
bool ecdsa_verify_legacy(const ecdsa_verify_context_t *ctx, const ecc_25519_work_t *pubkey);
int ecdsa_verify_list_legacy(const ecdsa_verify_context_t *ctx, const ecc_25519_work_t **pubkey);

The _legacy suffix is supposed to convey that these functions are based on the old legacy curve of libuecc and not Ed25519. Ed25519 support could be added in a subsequent commit.

Show usage for verify sub-command

ecdsautil verify should display usage information. Either with -h or by wrong usage.

create new release v0.4.0

Can you please tag the current version 0.4.0 and create a release, please?

haveged needed

Hello,

I just compiled ecdsautils and the necessary library on a fresh Debian 8. Haveged is not installed there by default and ecdsautils just hangs for several minutes, if you try to create a private key.

There should be at least a hint, that the package is needed or it should be checked for in the make file.

Regards,
Matthias

`ecdsautil verify` should output usage

ecdsautil verify should output its usage when no signatures or no public keys a supplied (and exit with an error).

Scripts or symlinks for backward compatibility

We should add scripts or symlinks offering the same functionality.

merge binaries

ecdsautils' binaries could be merged into a single binary:

ecdsautils help
ecdsautils keygen
ecdsautils sign
ecdsautils verify

Does not build on a Mac

Apparently there is no error.h on OS X, so the tool does not build on macs.

output version number on -h