Cryptography

Find hashing, message authentication, and signature operations.

Feature: Data Transmission

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string llComputeHash(string message, string algorithm)Returns a hex-encoded hash digest string of message using the specified cryptographic algorithm.string llHMAC(string private_key, string msg, string algorithm)Returns a Base64-encoded HMAC hash of msg using the secret key private_key and the specified digest algorithm (md5, sha1, sha224, sha256, sha384, or sha512).integer llVerifyRSA(string public_key, string msg, string signature, string algorithm)Returns TRUE if the Base64-formatted signature is verified as valid for the message msg when using the digest algorithm and public_key. Returns FALSE otherwise.

Reference

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8 topic entries

• string llComputeHash(string message, string algorithm)function

  Returns a hex-encoded hash digest string of message using the specified cryptographic algorithm.

• string llHMAC(string private_key, string msg, string algorithm)function

  Returns a Base64-encoded HMAC hash of msg using the secret key private_key and the specified digest algorithm (md5, sha1, sha224, sha256, sha384, or sha512).

• integer llHash(string val)function

  Returns an integer representing the 32-bit hash value of the string val (returns 0 if the string is empty).

• string llMD5String(string src, integer nonce)function

  Returns a string of 32 hex characters representing the MD5 checksum of src salted with nonce (formatted as ':' + nonce).

• string llSHA1String(string src)function

  Returns a string of 40 hex characters representing the SHA-1 security hash of src.

• string llSHA256String(string src)function

  Returns a string of 64 hex characters representing the SHA-256 security hash of src.

• string llSignRSA(string private_key, string msg, string algorithm)function

  Returns the Base64-encoded RSA signature of msg using the PEM-formatted private_key and the specified digest algorithm (sha1, sha224, sha256, sha384, or sha512). Can be paired with llVerifyRSA to pass verifiable messages.

• integer llVerifyRSA(string public_key, string msg, string signature, string algorithm)function

  Returns TRUE if the Base64-formatted signature is verified as valid for the message msg when using the digest algorithm and public_key. Returns FALSE otherwise.