diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/std/crypto/chacha20.zig | 24 | ||||
| -rw-r--r-- | lib/std/crypto/gimli.zig | 52 |
2 files changed, 38 insertions, 38 deletions
diff --git a/lib/std/crypto/chacha20.zig b/lib/std/crypto/chacha20.zig index 02257c2a0b..d2167db31a 100644 --- a/lib/std/crypto/chacha20.zig +++ b/lib/std/crypto/chacha20.zig @@ -744,26 +744,26 @@ pub const Chacha20Poly1305 = struct { pub const key_length = 32; /// c: ciphertext: output buffer should be of size m.len - /// at: authentication tag: output MAC + /// tag: authentication tag: output MAC /// m: message /// ad: Associated Data /// npub: public nonce /// k: private key - pub fn encrypt(c: []u8, at: *[tag_length]u8, m: []const u8, ad: []const u8, npub: [nonce_length]u8, k: [key_length]u8) void { + pub fn encrypt(c: []u8, tag: *[tag_length]u8, m: []const u8, ad: []const u8, npub: [nonce_length]u8, k: [key_length]u8) void { assert(c.len == m.len); - return chacha20poly1305SealDetached(c, at, m, ad, k, npub); + return chacha20poly1305SealDetached(c, tag, m, ad, k, npub); } /// m: message: output buffer should be of size c.len /// c: ciphertext - /// at: authentication tag + /// tag: authentication tag /// ad: Associated Data /// npub: public nonce /// k: private key /// NOTE: the check of the authentication tag is currently not done in constant time - pub fn decrypt(m: []u8, c: []const u8, at: [tag_length]u8, ad: []const u8, npub: [nonce_length]u8, k: [key_length]u8) !void { + pub fn decrypt(m: []u8, c: []const u8, tag: [tag_length]u8, ad: []const u8, npub: [nonce_length]u8, k: [key_length]u8) !void { assert(c.len == m.len); - return try chacha20poly1305OpenDetached(m, c, at[0..], ad, k, npub); + return try chacha20poly1305OpenDetached(m, c, tag[0..], ad, k, npub); } }; @@ -773,26 +773,26 @@ pub const XChacha20Poly1305 = struct { pub const key_length = 32; /// c: ciphertext: output buffer should be of size m.len - /// at: authentication tag: output MAC + /// tag: authentication tag: output MAC /// m: message /// ad: Associated Data /// npub: public nonce /// k: private key - pub fn encrypt(c: []u8, at: *[tag_length]u8, m: []const u8, ad: []const u8, npub: [nonce_length]u8, k: [key_length]u8) void { + pub fn encrypt(c: []u8, tag: *[tag_length]u8, m: []const u8, ad: []const u8, npub: [nonce_length]u8, k: [key_length]u8) void { assert(c.len == m.len); - return xchacha20poly1305SealDetached(c, at, m, ad, k, npub); + return xchacha20poly1305SealDetached(c, tag, m, ad, k, npub); } /// m: message: output buffer should be of size c.len /// c: ciphertext - /// at: authentication tag + /// tag: authentication tag /// ad: Associated Data /// npub: public nonce /// k: private key /// NOTE: the check of the authentication tag is currently not done in constant time - pub fn decrypt(m: []u8, c: []const u8, at: [tag_length]u8, ad: []const u8, npub: [nonce_length]u8, k: [key_length]u8) !void { + pub fn decrypt(m: []u8, c: []const u8, tag: [tag_length]u8, ad: []const u8, npub: [nonce_length]u8, k: [key_length]u8) !void { assert(c.len == m.len); - return try xchacha20poly1305OpenDetached(m, c, at[0..], ad, k, npub); + return try xchacha20poly1305OpenDetached(m, c, tag[0..], ad, k, npub); } }; diff --git a/lib/std/crypto/gimli.zig b/lib/std/crypto/gimli.zig index 3c88e2ce11..5b572aad7d 100644 --- a/lib/std/crypto/gimli.zig +++ b/lib/std/crypto/gimli.zig @@ -228,12 +228,12 @@ pub const Aead = struct { } /// c: ciphertext: output buffer should be of size m.len - /// at: authentication tag: output MAC + /// tag: authentication tag: output MAC /// m: message /// ad: Associated Data /// npub: public nonce /// k: private key - pub fn encrypt(c: []u8, at: *[tag_length]u8, m: []const u8, ad: []const u8, npub: [nonce_length]u8, k: [key_length]u8) void { + pub fn encrypt(c: []u8, tag: *[tag_length]u8, m: []const u8, ad: []const u8, npub: [nonce_length]u8, k: [key_length]u8) void { assert(c.len == m.len); var state = Aead.init(ad, npub, k); @@ -269,17 +269,17 @@ pub const Aead = struct { // After the final non-full block of plaintext, the first 16 bytes // of the state are output as an authentication tag. - std.mem.copy(u8, at, buf[0..State.RATE]); + std.mem.copy(u8, tag, buf[0..State.RATE]); } /// m: message: output buffer should be of size c.len /// c: ciphertext - /// at: authentication tag + /// tag: authentication tag /// ad: Associated Data /// npub: public nonce /// k: private key /// NOTE: the check of the authentication tag is currently not done in constant time - pub fn decrypt(m: []u8, c: []const u8, at: [tag_length]u8, ad: []const u8, npub: [nonce_length]u8, k: [key_length]u8) !void { + pub fn decrypt(m: []u8, c: []const u8, tag: [tag_length]u8, ad: []const u8, npub: [nonce_length]u8, k: [key_length]u8) !void { assert(c.len == m.len); var state = Aead.init(ad, npub, k); @@ -312,7 +312,7 @@ pub const Aead = struct { // After the final non-full block of plaintext, the first 16 bytes // of the state are the authentication tag. // TODO: use a constant-time equality check here, see https://github.com/ziglang/zig/issues/1776 - if (!mem.eql(u8, buf[0..State.RATE], &at)) { + if (!mem.eql(u8, buf[0..State.RATE], &tag)) { @memset(m.ptr, undefined, m.len); return error.InvalidMessage; } @@ -332,13 +332,13 @@ test "cipher" { const pt: [0]u8 = undefined; var ct: [pt.len]u8 = undefined; - var at: [16]u8 = undefined; - Aead.encrypt(&ct, &at, &pt, &ad, nonce, key); + var tag: [16]u8 = undefined; + Aead.encrypt(&ct, &tag, &pt, &ad, nonce, key); htest.assertEqual("", &ct); - htest.assertEqual("14DA9BB7120BF58B985A8E00FDEBA15B", &at); + htest.assertEqual("14DA9BB7120BF58B985A8E00FDEBA15B", &tag); var pt2: [pt.len]u8 = undefined; - try Aead.decrypt(&pt2, &ct, at, &ad, nonce, key); + try Aead.decrypt(&pt2, &ct, tag, &ad, nonce, key); testing.expectEqualSlices(u8, &pt, &pt2); } { // test vector (34) from NIST KAT submission. @@ -347,13 +347,13 @@ test "cipher" { try std.fmt.hexToBytes(&pt, "00"); var ct: [pt.len]u8 = undefined; - var at: [16]u8 = undefined; - Aead.encrypt(&ct, &at, &pt, &ad, nonce, key); + var tag: [16]u8 = undefined; + Aead.encrypt(&ct, &tag, &pt, &ad, nonce, key); htest.assertEqual("7F", &ct); - htest.assertEqual("80492C317B1CD58A1EDC3A0D3E9876FC", &at); + htest.assertEqual("80492C317B1CD58A1EDC3A0D3E9876FC", &tag); var pt2: [pt.len]u8 = undefined; - try Aead.decrypt(&pt2, &ct, at, &ad, nonce, key); + try Aead.decrypt(&pt2, &ct, tag, &ad, nonce, key); testing.expectEqualSlices(u8, &pt, &pt2); } { // test vector (106) from NIST KAT submission. @@ -363,13 +363,13 @@ test "cipher" { try std.fmt.hexToBytes(&pt, "000102"); var ct: [pt.len]u8 = undefined; - var at: [16]u8 = undefined; - Aead.encrypt(&ct, &at, &pt, &ad, nonce, key); + var tag: [16]u8 = undefined; + Aead.encrypt(&ct, &tag, &pt, &ad, nonce, key); htest.assertEqual("484D35", &ct); - htest.assertEqual("030BBEA23B61C00CED60A923BDCF9147", &at); + htest.assertEqual("030BBEA23B61C00CED60A923BDCF9147", &tag); var pt2: [pt.len]u8 = undefined; - try Aead.decrypt(&pt2, &ct, at, &ad, nonce, key); + try Aead.decrypt(&pt2, &ct, tag, &ad, nonce, key); testing.expectEqualSlices(u8, &pt, &pt2); } { // test vector (790) from NIST KAT submission. @@ -379,13 +379,13 @@ test "cipher" { try std.fmt.hexToBytes(&pt, "000102030405060708090A0B0C0D0E0F10111213141516"); var ct: [pt.len]u8 = undefined; - var at: [16]u8 = undefined; - Aead.encrypt(&ct, &at, &pt, &ad, nonce, key); + var tag: [16]u8 = undefined; + Aead.encrypt(&ct, &tag, &pt, &ad, nonce, key); htest.assertEqual("6815B4A0ECDAD01596EAD87D9E690697475D234C6A13D1", &ct); - htest.assertEqual("DFE23F1642508290D68245279558B2FB", &at); + htest.assertEqual("DFE23F1642508290D68245279558B2FB", &tag); var pt2: [pt.len]u8 = undefined; - try Aead.decrypt(&pt2, &ct, at, &ad, nonce, key); + try Aead.decrypt(&pt2, &ct, tag, &ad, nonce, key); testing.expectEqualSlices(u8, &pt, &pt2); } { // test vector (1057) from NIST KAT submission. @@ -394,13 +394,13 @@ test "cipher" { try std.fmt.hexToBytes(&pt, "000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F"); var ct: [pt.len]u8 = undefined; - var at: [16]u8 = undefined; - Aead.encrypt(&ct, &at, &pt, &ad, nonce, key); + var tag: [16]u8 = undefined; + Aead.encrypt(&ct, &tag, &pt, &ad, nonce, key); htest.assertEqual("7F8A2CF4F52AA4D6B2E74105C30A2777B9D0C8AEFDD555DE35861BD3011F652F", &ct); - htest.assertEqual("7256456FA935AC34BBF55AE135F33257", &at); + htest.assertEqual("7256456FA935AC34BBF55AE135F33257", &tag); var pt2: [pt.len]u8 = undefined; - try Aead.decrypt(&pt2, &ct, at, &ad, nonce, key); + try Aead.decrypt(&pt2, &ct, tag, &ad, nonce, key); testing.expectEqualSlices(u8, &pt, &pt2); } } |
