Commit graph

66 commits

Author SHA1 Message Date
Roman Khimov
5bf00db2c9 io: move BinReader/BinWriter there, redo Serializable with it
The logic here is that we'll have all binary encoding/decoding done via our io
package, which simplifies error handling. This functionality doesn't belong to
util, so it's moved.

This also expands BufBinWriter with Reset() method to fit the needs of core
package.
2019-09-16 23:39:51 +03:00
Roman Khimov
a039ae6cdb
Merge pull request #374 from nspcc-dev/makefile-and-gofmt
Makefile convenience targets and gofmt
2019-09-09 15:05:12 +03:00
Roman Khimov
8db9d2a976 crypto: use mr-tron/base58 for base58
Use more fast and reliable implementation. Add some tests for our wrappers,
deduplicate code in PublicKey.Adress(). Fixes #355.
2019-09-09 13:12:55 +03:00
Roman Khimov
fabd11699a *: gofmt -s
Appy gofmt for all the source tree.
2019-09-09 12:02:24 +03:00
Roman Khimov
e537dc9ee4 keys: improve publick key checks with a check against P
ANSI X9.62 says that if x or y coordinate are greater than or equal to
curve.Params().P, the conversion should return an error (see ANSI X9.62:2005
Section A.5.8 Step b, which invokes Section A.5.5, which does the check and
rejects when x or y are too big.

See https://github.com/golang/go/issues/20482 for more details.
2019-09-05 12:34:12 +03:00
Roman Khimov
f12194f3b0 keys: deduplicate DecodeBytes/DecodeBinary for PrivateKey
They shared prefix logic for no good reason, don't do that.
2019-09-05 12:34:12 +03:00
Roman Khimov
2c3e92923f keys: simplify error handling for PublicKey() and associated
PublicKey() for PrivateKey now just can't fail and it makes no sense to return
an error from it. There is a lot of associated functionality for which this
also is true, so adjust it accordingly and simplify a lot of code.
2019-09-05 12:34:12 +03:00
Roman Khimov
60bc2e8053 keys: simplify PublicKey() for PrivateKey
Public key is just a point, so use the coordinates obtained previously to
initialize the PublicKey structure without jumping through the hoops of
encoding/decoding.
2019-09-05 12:34:12 +03:00
Roman Khimov
f0fbe9f6c9 crypto: drop home-grown elliptic crypto, use crypto/elliptic
As NEO uses P256 we can use standard crypto/elliptic library for almost
everything, the only exception being decompression of the Y coordinate. For
some reason the standard library only supports uncompressed format in its
Marshal()/Unmarshal() functions. elliptic.P256() is known to have
constant-time implementation, so it fixes #245 (and the decompression using
big.Int operates on public key, so nobody really cares about that part being
constant-time).

New decompress function is inspired by
https://stackoverflow.com/questions/46283760, even though the previous one
really did the same thing just in a little less obvious way.
2019-09-05 12:33:27 +03:00
Roman Khimov
0b884b92b3 crypto: use PrivateKey to generate a key pair
It makes no sense to provide an API for throw-away public keys, so obtain it
via a new real keypair generation where appropriate (and that's only needed
for testing).
2019-09-05 09:38:13 +03:00
Roman Khimov
db9e37b3bb *: fix golint's omit type suggestions
pkg/core/transaction/attribute.go:67:14: should omit type uint8 from declaration of var urllen; it will be inferred from the right-hand side
pkg/crypto/keys/publickey.go:184:8: should omit type []byte from declaration of var b; it will be inferred from the right-hand side
pkg/network/payload/version_test.go:15:12: should omit type bool from declaration of var relay; it will be inferred from the right-hand side

Refs. #213.
2019-09-03 18:16:48 +03:00
Roman Khimov
a9b9c9226d *: add/fix godoc comments to satisfy golint
Fixes things like:
 * exported type/method/function X should have comment or be unexported
 * comment on exported type/method/function X should be of the form "X ..."
   (with optional leading article)

Refs. #213.
2019-09-03 17:57:51 +03:00
Roman Khimov
2a8e420608 nep2: fix comment, NEP-2 is about keys, not wallets 2019-08-27 17:47:07 +03:00
Roman Khimov
5836ae6873 keys: change Signature() and Address() to not return errors
As they never can return any real one.
2019-08-27 17:46:01 +03:00
Roman Khimov
483b875f4a keys: simplify tests with assert package 2019-08-27 17:46:01 +03:00
Roman Khimov
b77e533d13 crypto/wallet: move public/private key into the new keys package
And drop associated _pkg.dev remnants (refs. #307).

Original `dev` branch had two separate packages for public and private keys,
but those are so intertwined (`TestHelper` subpackage is a proof) that it's
better unite them and all associated code (like WIF and NEP-2) in one
package. This patch also:
 * creates internal `keytestcases` package to share things with wallet (maybe
   it'll be changed in some future)
 * ports some tests from `dev`
 * ports Verify() method for public key from `dev`
 * expands TestPrivateKey() with public key check
2019-08-27 17:45:51 +03:00