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Thomas Bocek 79dd498b16 Signature Malleability: (#1622) ... * Transaction Malleability: If you allow for both values 0/1 and 27/28, you allow two different signatures both resulting in a same valid recovery. (r,s,0/1) and (r,s,27/28) would both be valid, recover the same public key and sign the same data. Furthermore, given (r,s,0/1), (r,s,27/28) can be constructed by anyone. * Transaction Malleability: EIP-2 still allows signature malleabality for ecrecover(), remove this possibility and force the signature to be unique. * Added a reference to appendix F to the yellow paper and improved comment. * better test description for testing the version 0, which returns a zero address * Check that the conversion from 0/1 to 27/28 only happens if its 0/1 * improved formatting * Refactor ECDSA code a bit. * Refactor ECDSA tests a bit. * Add changelog entry. * Add high-s check test.		6 years ago
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ECDSA.sol	Signature Malleability: (#1622)	6 years ago
MerkleProof.sol	Fix warnings (#1606)	6 years ago