feat: port BIP32 tests from the rust library

README.md

@@ -33,3 +33,8 @@ Address API example:
       addrBase := NewBaseAddress(5, StakeCredetialFromKeyHash(keyBytes[:]), StakeCredetialFromScriptHash(scriptBytes[:]))
       addrBytes := addrBase.ToBytes()
    ```
+## Tests
+You can run all tests with the command:
+   ```go
+    go test ./...
+   ```

address/byron_address.go

@@ -77,3 +77,15 @@ func (b ByronAddress) NetworkId() (uint8, error) {
 	}
 	return 0, errors.New("unexpected protocol magic")
 }
+
+// IcarusFromKey implements https://github.com/Emurgo/cardano-serialization-lib/blob/0e89deadf9183a129b9a25c0568eed177d6c6d7c/rust/src/address.rs#L229
+// icarus-style address (Ae2)
+func IcarusFromKey(key []byte, protocolMagic uint32) ByronAddress {
+	var filteredProtocolMagic *uint32
+	if protocolMagic == MainNet().ProtocolMagic {
+		filteredProtocolMagic = nil
+	} else {
+		filteredProtocolMagic = &protocolMagic
+	}
+	return NewSimpleExtendedAddr(key, filteredProtocolMagic).ToByronAddress()
+}

address/extended_addr.go

@@ -6,8 +6,8 @@ import (
 	"errors"
 	"fmt"
 	"github.com/fivebinaries/go-cardano-serialization/bip32"
+	"github.com/fivebinaries/go-cardano-serialization/crypto"
 	"github.com/fxamacker/cbor/v2"
-	"golang.org/x/crypto/blake2b"
 	"golang.org/x/crypto/sha3"
 	"hash/crc32"
 	"log"
@@ -84,6 +84,12 @@ func NewExtendedAddr(pub bip32.XPub, attributes AddrAttributes) *ExtendedAddr {
 	}
 }
 
+// NewSimpleExtendedAddr implements https://github.com/Emurgo/cardano-serialization-lib/blob/0e89deadf9183a129b9a25c0568eed177d6c6d7c/rust/src/legacy_address/address.rs#L295
+// bootstrap era + no hdpayload address
+func NewSimpleExtendedAddr(pub bip32.XPub, protocolMagic *uint32) *ExtendedAddr {
+	return NewExtendedAddr(pub, NewBootstrapEra(nil, protocolMagic))
+}
+
 // ToExtendedAddr convert extendedAddrCBOR to ExtendedAddr
 func (addr extendedAddrCBOR) ToExtendedAddr() (ExtendedAddr, error) {
 	attr, err := addr.Attributes.ProcessAttributes()
@@ -113,12 +119,8 @@ func SHA3ThenBlake2b224(data []byte) []byte {
 	sh3 := sha3.New256()
 	sh3.Write(data)
 	sh3Result := sh3.Sum(nil)
-	b2b, err := blake2b.New(28, nil)
-	if err != nil {
-		log.Fatalf("error in sha3 then blake2b224 transform: %s", err)
-	}
-	b2b.Write(sh3Result[:])
-	return b2b.Sum(nil)
+	b2result := crypto.Blake2b224(sh3Result)
+	return b2result[:]
 }
 
 // ProcessAttributes method for converting AddrAttributesRaw to AddrAttributes
@@ -241,3 +243,8 @@ func (ea *ExtendedAddr) IdenticalWithPubKey(xpub *bip32.XPub) bool {
 	}
 	return bytes.Equal(addrBytes, neweaBytes)
 }
+
+// NewBootstrapEra implements https://github.com/Emurgo/cardano-serialization-lib/blob/0e89deadf9183a129b9a25c0568eed177d6c6d7c/rust/src/legacy_address/address.rs#L85
+func NewBootstrapEra(hdap []byte, protocolMagic *uint32) AddrAttributes {
+	return AddrAttributes{DerivationPath: hdap, ProtocolMagic: protocolMagic}
+}