ChaCha Cipher
Key
Nonce
Counter
Rounds
Input
Output
ChaCha is a stream cipher designed by Daniel J. Bernstein. It is a variant of the Salsa stream cipher. Several parameterizations exist; 'ChaCha' may refer to the original construction, or to the variant as described in RFC-8439. ChaCha is often used with Poly1305, in the ChaCha20-Poly1305 AEAD construction.
Options
Key: ChaCha uses a key of 16 or 32 bytes (128 or 256 bits).
Nonce: ChaCha uses a nonce of 8 or 12 bytes (64 or 96 bits).
Counter: ChaCha uses a counter of 4 or 8 bytes (32 or 64 bits); together, the nonce and counter must add up to 16 bytes. The counter starts at zero at the start of the keystream, and is incremented at every 64 bytes.
References
https://wikipedia.org/wiki/Salsa20#ChaCha_variant
Related Tools
TEA Encrypt & Decrypt
TEA (Tiny Encryption Algorithm) is a block cipher notable for its simplicity of description and implementation, typically a few lines of code. TEA Encrypt & Decrypt is a free online tool that for Tiny Encryption Algorithm Encrypt & Decrypt.
XTEA Encrypt & Decrypt
XTEA (eXtended TEA) is a block cipher designed to correct weaknesses in TEA. XTEA Encrypt & Decrypt is a free online tool that for eXtended TEA cipher Encrypt & Decrypt.
XXTEA Encrypt & Decrypt
XXTEA Encrypt & Decrypt is a free online tool that for Corrected Block TEA cipher Encrypt & Decrypt. XXTEA (Corrected Block TEA) is a block cipher designed to correct weaknesses in the original Block TEA.
MD5 Encrypt
MD5 Encrypt is a process of using the MD5 algorithm to transform a string of any length into a hash. You can use this online tool to perform MD5 Encrypt on any string you want.