web3_signers
library
Functions
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arrayify(String hexString)
→ Uint8List
-
Converts a hex string to a 32bytes
Uint8List.
-
b64d(String b64)
→ Uint8List
-
Decode a Base64 URL encoded string adding in any required '='
-
b64e(List<int> bytes)
→ String
-
Encode a byte list into Base64 URL encoding, stripping any trailing '='
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bufEquals(ByteBuffer b1, ByteBuffer b2)
→ bool
-
-
bytesUnwrapDer(Uint8List derEncoded, Uint8List oid)
→ Uint8List
-
Extracts a payload from the given
derEncoded data, and checks that it was
tagged with the given oid.
-
bytesUnwrapDerSignature(Uint8List derEncoded)
→ Uint8List
-
ECDSA DER Signature
0x30|b1|0x02|b2|r|0x02|b3|s
b1 = Length of remaining data
b2 = Length of r
b3 = Length of s
-
bytesWrapDer(Uint8List payload, Uint8List oid)
→ Uint8List
-
Wraps the given
payload in a DER encoding tagged with the given encoded
oid like so: SEQUENCE(oid, BITSTRING(payload))
-
bytesWrapDerSignature(Uint8List rawSignature)
→ Uint8List
-
-
decodeLenBytes(Uint8List buf, int offset)
→ int
-
-
encodeLen(Uint8List buf, int offset, int len)
→ int
-
-
encodeLenBytes(int len)
→ int
-
-
getMessagingSignature(Uint8List signatureBytes)
→ Tuple<Uint256, Uint256>
-
Parses ASN1-encoded signature bytes and returns a List of two hex strings representing the
r and s values.
-
getPublicKeyFromBytes(Uint8List publicKeyBytes)
→ Future<Tuple<Uint256, Uint256>>
-
Retrieves the X and Y components of an ECDSA public key from its bytes.
-
getRandomValues([int length = _defaultLength])
→ Uint8List
-
-
hexHasPrefix(String value)
→ bool
-
-
hexlify(List<int> intArray)
→ String
-
Converts a list of integers to a hexadecimal string.
-
hexStripPrefix(String value)
→ String
-
-
hexToU8a(String value, [int bitLength = -1])
→ Uint8List
-
value should be 0x hex string.
-
isDerPublicKey(Uint8List pub, Uint8List oid)
→ bool
-
-
isDerSignature(Uint8List sig)
→ bool
-
-
isHex(dynamic value, {int bits = -1, bool ignoreLength = false})
→ bool
-
-
main()
→ void
-
-
padBase64(String b64)
→ String
-
-
randomAsU8a([int length = _defaultLength])
→ Uint8List
-
-
require(bool requirement, String exception)
→ dynamic
-
Throws an exception if the specified requirement is not met.
-
sha256Hash(List<int> input)
→ List<int>
-
Computes the SHA-256 hash of the specified input.
-
shouldRemoveLeadingZero(Uint8List bytes)
→ bool
-
Checks whether the leading zero should be removed from the byte array.
-
toBuffer(List<List<int>> buff)
→ List<int>
-
Combines multiple lists of integers into a single list.
