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1.8.0 - 2024-09-18

Added

• Added verifyEthers method to verify Ethereum signatures using the EIP-191 message hashing standard o1-labs/o1js#1815
  • Added fromEthers method for parsing and converting Ethereum public keys into ForeignCurve points, supporting both compressed and uncompressed formats.
  • Added fromHex method for converting hexadecimal strings into ForeignCurve points.

Fixes

• Fix incorrect behavior of optional proving for zkPrograms where myProgram.setProofsEnabled(false) wouldn't work when called before myProgram.compile() o1-labs/o1js#1827

1.7.0 - 2024-09-04

Added

• Added Encryption.encryptV2() and Encryption.decryptV2() for an updated encryption algorithm that guarantees cipher text integrity.
  • Also added Encryption.encryptBytes() and Encryption.decryptBytes() using the same algorithm.
• New option proofsEnabled for zkProgram (default value: true), to quickly test circuit logic with proofs disabled o1-labs/o1js#1805
  • Additionally added MyProgram.proofsEnabled to get the internal value of proofsEnabled and MyProgram.setProofsEnabled(proofsEnabled) to set the value dynamically.

Deprecated

• this.sender.getAndRequireSignature() / getUnconstrained() deprecated in favor of V2 versions due to a vulnerability o1-labs/o1js#1799

Fixes

• Fix behavior of Int64.modV2() when the input is negative and the remainder should be 0 o1-labs/o1js#1797

1.6.0 - 2024-07-23

Added

• SmartContract.emitEventIf() to conditionally emit an event o1-labs/o1js#1746
• Added Encryption.encryptV2() and Encryption.decryptV2() for an updated encryption algorithm that guarantees cipher text integrity.
  • Also added Encryption.encryptBytes() and Encryption.decryptBytes() using the same algorithm.

Changed

• Reduced maximum bit length for xor, not, and and, operations from 254 to 240 bits to prevent overflow vulnerabilities. o1-labs/o1js#1745
• Allow using Type instead of Type.provable in APIs that expect a provable type o1-labs/o1js#1751
  • Example: Provable.witness(Bytes32, () => bytes)
• Automatically wrap and unwrap Unconstrained in fromValue and toValue, so that we don't need to deal with "unconstrained" values outside provable code o1-labs/o1js#1751

1.5.0 - 2024-07-09

Breaking changes

• Fixed a vulnerability in OffchainState where it didn't store the IndexedMerkleTree length onchain and left it unconstrained o1-labs/o1js#1676

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