- Zip
- Checksum
- AES encryption (formerly Rijndael), as defined in U.S. Federal Information Processing Standards Publication 197. The AES operations in this package are not implemented using constant-time algorithms.
  AES
- Elliptic Curve Diffie-Hellman over NIST curves and Curve25519.
  ECDH
- Elliptic Curve Digital Signature Algorithm, as defined in FIPS 186-5. Signatures generated by this package are not deterministic, but entropy is mixed with the private key and the message, achieving the same level of security in case of randomness source failure. Operations involving private keys are implemented using constant-time algorithms, as long as an elliptic.Curve returned by elliptic.P224, elliptic.P256, elliptic.P384, or elliptic.P521 is used.
  ECDSA
- Ed25519 signature algorithm. These functions are also compatible with the “Ed25519” function defined in RFC 8032. However, unlike RFC 8032's formulation, this package's private key representation includes a public key suffix to make multiple signing operations with the same key more efficient. Operations involving private keys are implemented using constant-time algorithms.
  ED25519
- Keyed-Hash Message Authentication Code (HMAC) as defined in U.S. Federal Information Processing Standards Publication 198. An HMAC is a cryptographic hash that uses a key to sign a message. The receiver verifies the hash by recomputing it using the same key.
  HMAC
- MD5 hash algorithm as defined in RFC 1321. MD5 is cryptographically broken and should not be used for secure applications.
  MD5
- Password based key derivation function PBKDF2 as defined in RFC 8018 (PKCS #5 v2.1). A key derivation function is useful when encrypting data based on a password or any other not-fully-random data. It uses a pseudorandom function to derive a secure encryption key based on the password.
  The key is derived based on the method described as PBKDF2 with the HMAC variant using the supplied hash function. Remember to get a good random salt. At least 8 bytes is recommended by the RFC. Using a higher iteration count will increase the cost of an exhaustive search but will also make derivation proportionally slower. keyLength must be a positive integer
  PBKDF2
- Cryptographically secure random number generator.
  Rand
- SHA-1 hash algorithm as defined in RFC 3174. SHA-1 is cryptographically broken and should not be used for secure applications.
  SHA1
- SHA-3 hash algorithms and the SHAKE extendable output functions defined in FIPS 202.
  SHA3
- SHA224 and SHA256 hash algorithms as defined in FIPS 180-4.
  SHA256
- SHA-384, SHA-512, SHA-512/224, and SHA-512/256 hash algorithms as defined in FIPS 180-4.
  SHA512
- Base32 encoding as specified by RFC 4648.
  Base32
- Base64 encoding as specified by RFC 4648.
  Base64
- Hexadecimal encoding and decoding.
  Hex
- Functions for escaping and unescaping HTML text.
  HTML
- Global JavaScript uri encoding functions.
  URI
- Adler-32 is composed of two sums accumulated per byte: s1 is the sum of all bytes, s2 is the sum of all s1 values. Both sums are done modulo 65521. s1 is initialized to 1, s2 to zero. The Adler-32 checksum is stored as s2*65536 + s1 in most- significant-byte first (network) order.
  Adler32
- 32-bit cyclic redundancy check, or CRC-32, checksum. See wiki: Cyclic Redundancy Check for information. Polynomials are represented in LSB-first form also known as reversed representation. See wiki: Mathematics of Cyclic Redundancy Checks for information.
  CRC32
- 64-bit cyclic redundancy check, or CRC-64, checksum. See wiki: Cyclic Redundancy Check for information.
  CRC64
- FNV-1 and FNV-1a, non-cryptographic hash functions created by Glenn Fowler, Landon Curt Noll, and Phong Vo. See wiki: Fowler-Noll-Vo Hash Function.
  FNV
- Basic mathematical functions.
  General

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