EthWallet.Utils.Crypto (eth_wallet v0.0.13)

Crypto Lib

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decrypt_key(encrypted_key, password)

Specs

decrypt_key(binary(), binary()) :: binary()
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double_sha256(data)

Specs

double_sha256(binary()) :: binary()
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encrypt_key(unencrypted_key, password)

Specs

encrypt_key(binary(), binary()) :: binary()
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generate_key_secp256k1()

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generate_key_secp256k1(privkey)

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pad(data, block_size)

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pubkey_to_address(public_key)

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recover(digest, signature, recovery_id_handled, chain_id \\ nil)

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ripemd160(data)

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sign(digest, priv)

:crypto.sign(:ecdsa, :sha256, msg, [privkey, :secp256k1])

equal to

msg |> sha256() |> :libsecp256k1.ecdsa_sign

sig format: 0x30 [total-length] 0x02 [R-length] [R] 0x02 [S-length] [S]

  • sha256 digest using for bitcoin
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sign_compact(digest, privkey, chain_id \\ nil)

The test is here:

https://github.com/exthereum/exth_crypto/blob/master/lib/signature/signature.ex

Attention: hash should be 32 bytes.

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verify(digest, sig, pubkey)

The test is here:

https://github.com/exthereum/exth_crypto/blob/master/lib/signature/signature.ex

Attention: hash should be 32 bytes.

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verify_compact(digest, sig, pubkey)