336 lines
10 KiB
Go
336 lines
10 KiB
Go
// Copyright (c) 2013 Conformal Systems LLC.
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// Use of this source code is governed by an ISC
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// license that can be found in the LICENSE file.
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package btcec_test
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import (
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"bytes"
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"crypto/ecdsa"
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"github.com/conformal/btcec"
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"github.com/davecgh/go-spew/spew"
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"testing"
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)
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type privKeyTest struct {
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name string
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key []byte
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}
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type pubKeyTest struct {
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name string
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key []byte
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format byte
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isValid bool
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}
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var privKeyTests = []privKeyTest{
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privKeyTest{
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name: "check curve",
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key: []byte{
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0xea, 0xf0, 0x2c, 0xa3, 0x48, 0xc5, 0x24, 0xe6,
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0x39, 0x26, 0x55, 0xba, 0x4d, 0x29, 0x60, 0x3c,
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0xd1, 0xa7, 0x34, 0x7d, 0x9d, 0x65, 0xcf, 0xe9,
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0x3c, 0xe1, 0xeb, 0xff, 0xdc, 0xa2, 0x26, 0x94,
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},
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},
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}
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var pubKeyTests = []pubKeyTest{
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// pubkey from bitcoin blockchain tx
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// 0437cd7f8525ceed2324359c2d0ba26006d92d85
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pubKeyTest{
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name: "uncompressed ok",
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key: []byte{0x04, 0x11, 0xdb, 0x93, 0xe1, 0xdc, 0xdb, 0x8a,
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0x01, 0x6b, 0x49, 0x84, 0x0f, 0x8c, 0x53, 0xbc, 0x1e,
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0xb6, 0x8a, 0x38, 0x2e, 0x97, 0xb1, 0x48, 0x2e, 0xca,
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0xd7, 0xb1, 0x48, 0xa6, 0x90, 0x9a, 0x5c, 0xb2, 0xe0,
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0xea, 0xdd, 0xfb, 0x84, 0xcc, 0xf9, 0x74, 0x44, 0x64,
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0xf8, 0x2e, 0x16, 0x0b, 0xfa, 0x9b, 0x8b, 0x64, 0xf9,
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0xd4, 0xc0, 0x3f, 0x99, 0x9b, 0x86, 0x43, 0xf6, 0x56,
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0xb4, 0x12, 0xa3,
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},
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isValid: true,
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format: btcec.TstPubkeyUncompressed,
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},
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pubKeyTest{
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name: "uncompressed x changed",
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key: []byte{0x04, 0x15, 0xdb, 0x93, 0xe1, 0xdc, 0xdb, 0x8a,
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0x01, 0x6b, 0x49, 0x84, 0x0f, 0x8c, 0x53, 0xbc, 0x1e,
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0xb6, 0x8a, 0x38, 0x2e, 0x97, 0xb1, 0x48, 0x2e, 0xca,
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0xd7, 0xb1, 0x48, 0xa6, 0x90, 0x9a, 0x5c, 0xb2, 0xe0,
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0xea, 0xdd, 0xfb, 0x84, 0xcc, 0xf9, 0x74, 0x44, 0x64,
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0xf8, 0x2e, 0x16, 0x0b, 0xfa, 0x9b, 0x8b, 0x64, 0xf9,
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0xd4, 0xc0, 0x3f, 0x99, 0x9b, 0x86, 0x43, 0xf6, 0x56,
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0xb4, 0x12, 0xa3,
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},
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isValid: false,
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},
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pubKeyTest{
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name: "uncompressed y changed",
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key: []byte{0x04, 0x11, 0xdb, 0x93, 0xe1, 0xdc, 0xdb, 0x8a,
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0x01, 0x6b, 0x49, 0x84, 0x0f, 0x8c, 0x53, 0xbc, 0x1e,
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0xb6, 0x8a, 0x38, 0x2e, 0x97, 0xb1, 0x48, 0x2e, 0xca,
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0xd7, 0xb1, 0x48, 0xa6, 0x90, 0x9a, 0x5c, 0xb2, 0xe0,
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0xea, 0xdd, 0xfb, 0x84, 0xcc, 0xf9, 0x74, 0x44, 0x64,
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0xf8, 0x2e, 0x16, 0x0b, 0xfa, 0x9b, 0x8b, 0x64, 0xf9,
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0xd4, 0xc0, 0x3f, 0x99, 0x9b, 0x86, 0x43, 0xf6, 0x56,
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0xb4, 0x12, 0xa4,
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},
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isValid: false,
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},
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pubKeyTest{
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name: "uncompressed claims compressed",
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key: []byte{0x03, 0x11, 0xdb, 0x93, 0xe1, 0xdc, 0xdb, 0x8a,
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0x01, 0x6b, 0x49, 0x84, 0x0f, 0x8c, 0x53, 0xbc, 0x1e,
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0xb6, 0x8a, 0x38, 0x2e, 0x97, 0xb1, 0x48, 0x2e, 0xca,
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0xd7, 0xb1, 0x48, 0xa6, 0x90, 0x9a, 0x5c, 0xb2, 0xe0,
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0xea, 0xdd, 0xfb, 0x84, 0xcc, 0xf9, 0x74, 0x44, 0x64,
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0xf8, 0x2e, 0x16, 0x0b, 0xfa, 0x9b, 0x8b, 0x64, 0xf9,
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0xd4, 0xc0, 0x3f, 0x99, 0x9b, 0x86, 0x43, 0xf6, 0x56,
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0xb4, 0x12, 0xa3,
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},
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isValid: false,
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},
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pubKeyTest{
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name: "uncompressed as hybrid ok",
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key: []byte{0x07, 0x11, 0xdb, 0x93, 0xe1, 0xdc, 0xdb, 0x8a,
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0x01, 0x6b, 0x49, 0x84, 0x0f, 0x8c, 0x53, 0xbc, 0x1e,
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0xb6, 0x8a, 0x38, 0x2e, 0x97, 0xb1, 0x48, 0x2e, 0xca,
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0xd7, 0xb1, 0x48, 0xa6, 0x90, 0x9a, 0x5c, 0xb2, 0xe0,
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0xea, 0xdd, 0xfb, 0x84, 0xcc, 0xf9, 0x74, 0x44, 0x64,
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0xf8, 0x2e, 0x16, 0x0b, 0xfa, 0x9b, 0x8b, 0x64, 0xf9,
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0xd4, 0xc0, 0x3f, 0x99, 0x9b, 0x86, 0x43, 0xf6, 0x56,
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0xb4, 0x12, 0xa3,
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},
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isValid: true,
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format: btcec.TstPubkeyHybrid,
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},
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pubKeyTest{
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name: "uncompressed as hybrid wrong",
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key: []byte{0x06, 0x11, 0xdb, 0x93, 0xe1, 0xdc, 0xdb, 0x8a,
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0x01, 0x6b, 0x49, 0x84, 0x0f, 0x8c, 0x53, 0xbc, 0x1e,
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0xb6, 0x8a, 0x38, 0x2e, 0x97, 0xb1, 0x48, 0x2e, 0xca,
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0xd7, 0xb1, 0x48, 0xa6, 0x90, 0x9a, 0x5c, 0xb2, 0xe0,
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0xea, 0xdd, 0xfb, 0x84, 0xcc, 0xf9, 0x74, 0x44, 0x64,
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0xf8, 0x2e, 0x16, 0x0b, 0xfa, 0x9b, 0x8b, 0x64, 0xf9,
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0xd4, 0xc0, 0x3f, 0x99, 0x9b, 0x86, 0x43, 0xf6, 0x56,
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0xb4, 0x12, 0xa3,
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},
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isValid: false,
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},
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// from tx 0b09c51c51ff762f00fb26217269d2a18e77a4fa87d69b3c363ab4df16543f20
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pubKeyTest{
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name: "compressed ok (ybit = 0)",
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key: []byte{0x02, 0xce, 0x0b, 0x14, 0xfb, 0x84, 0x2b, 0x1b,
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0xa5, 0x49, 0xfd, 0xd6, 0x75, 0xc9, 0x80, 0x75, 0xf1,
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0x2e, 0x9c, 0x51, 0x0f, 0x8e, 0xf5, 0x2b, 0xd0, 0x21,
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0xa9, 0xa1, 0xf4, 0x80, 0x9d, 0x3b, 0x4d,
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},
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isValid: true,
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format: btcec.TstPubkeyCompressed,
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},
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// from tx fdeb8e72524e8dab0da507ddbaf5f88fe4a933eb10a66bc4745bb0aa11ea393c
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pubKeyTest{
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name: "compressed ok (ybit = 1)",
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key: []byte{0x03, 0x26, 0x89, 0xc7, 0xc2, 0xda, 0xb1, 0x33,
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0x09, 0xfb, 0x14, 0x3e, 0x0e, 0x8f, 0xe3, 0x96, 0x34,
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0x25, 0x21, 0x88, 0x7e, 0x97, 0x66, 0x90, 0xb6, 0xb4,
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0x7f, 0x5b, 0x2a, 0x4b, 0x7d, 0x44, 0x8e,
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},
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isValid: true,
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format: btcec.TstPubkeyCompressed,
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},
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pubKeyTest{
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name: "compressed claims uncompressed (ybit = 0)",
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key: []byte{0x04, 0xce, 0x0b, 0x14, 0xfb, 0x84, 0x2b, 0x1b,
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0xa5, 0x49, 0xfd, 0xd6, 0x75, 0xc9, 0x80, 0x75, 0xf1,
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0x2e, 0x9c, 0x51, 0x0f, 0x8e, 0xf5, 0x2b, 0xd0, 0x21,
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0xa9, 0xa1, 0xf4, 0x80, 0x9d, 0x3b, 0x4d,
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},
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isValid: false,
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},
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pubKeyTest{
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name: "compressed claims uncompressed (ybit = 1)",
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key: []byte{0x05, 0x26, 0x89, 0xc7, 0xc2, 0xda, 0xb1, 0x33,
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0x09, 0xfb, 0x14, 0x3e, 0x0e, 0x8f, 0xe3, 0x96, 0x34,
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0x25, 0x21, 0x88, 0x7e, 0x97, 0x66, 0x90, 0xb6, 0xb4,
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0x7f, 0x5b, 0x2a, 0x4b, 0x7d, 0x44, 0x8e,
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},
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isValid: false,
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},
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pubKeyTest{
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name: "wrong length)",
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key: []byte{0x05},
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isValid: false,
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},
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pubKeyTest{
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name: "X == P",
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key: []byte{0x04, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFE, 0xFF, 0xFF, 0xFC, 0x2F, 0xb2, 0xe0,
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0xea, 0xdd, 0xfb, 0x84, 0xcc, 0xf9, 0x74, 0x44, 0x64,
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0xf8, 0x2e, 0x16, 0x0b, 0xfa, 0x9b, 0x8b, 0x64, 0xf9,
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0xd4, 0xc0, 0x3f, 0x99, 0x9b, 0x86, 0x43, 0xf6, 0x56,
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0xb4, 0x12, 0xa3,
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},
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isValid: false,
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},
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pubKeyTest{
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name: "X > P",
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key: []byte{0x04, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFE, 0xFF, 0xFF, 0xFD, 0x2F, 0xb2, 0xe0,
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0xea, 0xdd, 0xfb, 0x84, 0xcc, 0xf9, 0x74, 0x44, 0x64,
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0xf8, 0x2e, 0x16, 0x0b, 0xfa, 0x9b, 0x8b, 0x64, 0xf9,
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0xd4, 0xc0, 0x3f, 0x99, 0x9b, 0x86, 0x43, 0xf6, 0x56,
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0xb4, 0x12, 0xa3,
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},
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isValid: false,
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},
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pubKeyTest{
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name: "Y == P",
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key: []byte{0x04, 0x11, 0xdb, 0x93, 0xe1, 0xdc, 0xdb, 0x8a,
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0x01, 0x6b, 0x49, 0x84, 0x0f, 0x8c, 0x53, 0xbc, 0x1e,
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0xb6, 0x8a, 0x38, 0x2e, 0x97, 0xb1, 0x48, 0x2e, 0xca,
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0xd7, 0xb1, 0x48, 0xa6, 0x90, 0x9a, 0x5c, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFE, 0xFF,
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0xFF, 0xFC, 0x2F,
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},
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isValid: false,
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},
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pubKeyTest{
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name: "Y > P",
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key: []byte{0x04, 0x11, 0xdb, 0x93, 0xe1, 0xdc, 0xdb, 0x8a,
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0x01, 0x6b, 0x49, 0x84, 0x0f, 0x8c, 0x53, 0xbc, 0x1e,
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0xb6, 0x8a, 0x38, 0x2e, 0x97, 0xb1, 0x48, 0x2e, 0xca,
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0xd7, 0xb1, 0x48, 0xa6, 0x90, 0x9a, 0x5c, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFE, 0xFF,
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0xFF, 0xFD, 0x2F,
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},
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isValid: false,
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},
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}
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func TestPrivKeys(t *testing.T) {
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for _, test := range privKeyTests {
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x, y := btcec.S256().ScalarBaseMult(test.key)
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pub := (*btcec.PublicKey)(&ecdsa.PublicKey{
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Curve: btcec.S256(),
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X: x,
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Y: y,
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})
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_, err := btcec.ParsePubKey(pub.SerializeUncompressed(), btcec.S256())
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if err != nil {
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t.Errorf("%s privkey: %v", test.name, err)
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continue
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}
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}
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}
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func TestPubKeys(t *testing.T) {
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for _, test := range pubKeyTests {
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pk, err := btcec.ParsePubKey(test.key, btcec.S256())
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if err != nil {
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if test.isValid {
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t.Errorf("%s pubkey failed when shouldn't %v",
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test.name, err)
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}
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continue
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}
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if !test.isValid {
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t.Errorf("%s counted as valid when it should fail",
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test.name)
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continue
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}
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var pkStr []byte
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switch test.format {
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case btcec.TstPubkeyUncompressed:
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pkStr = (*btcec.PublicKey)(pk).SerializeUncompressed()
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case btcec.TstPubkeyCompressed:
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pkStr = (*btcec.PublicKey)(pk).SerializeCompressed()
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case btcec.TstPubkeyHybrid:
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pkStr = (*btcec.PublicKey)(pk).SerializeHybrid()
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}
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if !bytes.Equal(test.key, pkStr) {
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t.Errorf("%s pubkey: serialized keys do not match.",
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test.name)
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spew.Dump(test.key)
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spew.Dump(pkStr)
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}
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}
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}
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func TestPad(t *testing.T) {
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tests := []struct {
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name string // Short name to describe the test.
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inSize int // The size to pad to.
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inBytes []byte // The input bytes to pad.
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expected []byte // The expected padded result.
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}{
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{
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name: "same size - no padding needed",
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inSize: 32,
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inBytes: []byte{
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0xce, 0x0b, 0x14, 0xfb, 0x84, 0x2b, 0x1b, 0xa5,
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0x49, 0xfd, 0xd6, 0x75, 0xc9, 0x80, 0x75, 0xf1,
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0x2e, 0x9c, 0x51, 0x0f, 0x8e, 0xf5, 0x2b, 0xd0,
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0x21, 0xa9, 0xa1, 0xf4, 0x80, 0x9d, 0x3b, 0x4d,
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},
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expected: []byte{
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0xce, 0x0b, 0x14, 0xfb, 0x84, 0x2b, 0x1b, 0xa5,
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0x49, 0xfd, 0xd6, 0x75, 0xc9, 0x80, 0x75, 0xf1,
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0x2e, 0x9c, 0x51, 0x0f, 0x8e, 0xf5, 0x2b, 0xd0,
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0x21, 0xa9, 0xa1, 0xf4, 0x80, 0x9d, 0x3b, 0x4d,
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},
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},
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{
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name: "short 1 byte",
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inSize: 32,
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inBytes: []byte{
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0x0b, 0x14, 0xfb, 0x84, 0x2b, 0x1b, 0xa5,
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0x49, 0xfd, 0xd6, 0x75, 0xc9, 0x80, 0x75, 0xf1,
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0x2e, 0x9c, 0x51, 0x0f, 0x8e, 0xf5, 0x2b, 0xd0,
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0x21, 0xa9, 0xa1, 0xf4, 0x80, 0x9d, 0x3b, 0x4d,
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},
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expected: []byte{
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0x00, 0x0b, 0x14, 0xfb, 0x84, 0x2b, 0x1b, 0xa5,
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0x49, 0xfd, 0xd6, 0x75, 0xc9, 0x80, 0x75, 0xf1,
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0x2e, 0x9c, 0x51, 0x0f, 0x8e, 0xf5, 0x2b, 0xd0,
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0x21, 0xa9, 0xa1, 0xf4, 0x80, 0x9d, 0x3b, 0x4d,
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},
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},
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{
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name: "more bytes than pad size",
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inSize: 31,
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inBytes: []byte{
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0xce, 0x0b, 0x14, 0xfb, 0x84, 0x2b, 0x1b, 0xa5,
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0x49, 0xfd, 0xd6, 0x75, 0xc9, 0x80, 0x75, 0xf1,
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0x2e, 0x9c, 0x51, 0x0f, 0x8e, 0xf5, 0x2b, 0xd0,
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0x21, 0xa9, 0xa1, 0xf4, 0x80, 0x9d, 0x3b, 0x4d,
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},
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expected: []byte{
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0xce, 0x0b, 0x14, 0xfb, 0x84, 0x2b, 0x1b, 0xa5,
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0x49, 0xfd, 0xd6, 0x75, 0xc9, 0x80, 0x75, 0xf1,
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0x2e, 0x9c, 0x51, 0x0f, 0x8e, 0xf5, 0x2b, 0xd0,
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0x21, 0xa9, 0xa1, 0xf4, 0x80, 0x9d, 0x3b, 0x4d,
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},
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},
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}
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t.Logf("Running %d tests.", len(tests))
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for i, test := range tests {
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result := btcec.TstPad(test.inSize, test.inBytes)
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if !bytes.Equal(result, test.expected) {
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t.Errorf("pad #%d (%s) unexpected result:\n"+
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"got: %x\nwant: %x", i, test.name, result,
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test.expected)
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}
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}
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}
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