41 lines
1.5 KiB
Zig
41 lines
1.5 KiB
Zig
pub const Implementation = struct {
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pub const KEY_SIZE = 32;
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pub const SIGNATURE_SIZE = 64;
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generateKeys: *const fn (pubkey_buffer: []u8, privkey_buffer: []u8) void,
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sign: *const fn (key: *const [KEY_SIZE]u8, data: *const []const u8, signature_out: *const [SIGNATURE_SIZE]u8) void,
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verify: *const fn (key: *const [KEY_SIZE]u8, data: *const []const u8, signature: *const [SIGNATURE_SIZE]u8) void,
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};
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// TODO
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pub const defaultImplementation = struct {
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const Ed25519 = @import("std").crypto.sign.Ed25519;
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pub fn generateKeys(pubkey_buffer: []u8, privkey_buffer: []u8) !void {
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if (Ed25519.SecretKey.encoded_length > privkey_buffer or
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Ed25519.SecretKey.encoded_length > privkey_buffer)
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{
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return error.BufferTooShort;
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}
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// TODO replace by a secure random number generator
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const keypair: Ed25519.KeyPair = try Ed25519.KeyPair.generateDeterministic(undefined);
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@memcpy(pubkey_buffer[0..Ed25519.PublicKey.encoded_length], keypair.public_key.bytes);
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@memcpy(privkey_buffer[0..Ed25519.SecretKey.encoded_length], keypair.secret_key.bytes);
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}
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pub fn sign(key: *const [32]u8, data: *const []const u8, signature_out: *const [64]u8) !void {
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_ = key;
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_ = data;
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_ = signature_out;
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return error.NotImplemented;
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}
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pub fn verify(signature: *const [64]u8, data: *const []const u8) !void {
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_ = signature;
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_ = data;
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return error.NotImplemented;
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}
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};
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