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
Random Password & Key Generator
Random Password & Key Generator offers a variety of randomly generated keys and passwords that you can use to secure any application, service, or device.
Link Lock
Link Lock is an online encrypting and decrypting tool for adding a password to a link or a web page; in other words, for encrypting and decrypting URLs. When a user visits an encrypted URL, they will be prompted to enter a password.
Punycode Encode & Decode
Punycode Encoder & Decoder is an encoding tool that can convert internationalized domain names (IDN) and Punycode encoding in DNS, addressing the issue of DNS systems only supporting English-language domain name resolution.
Cetacean Cipher
Cetacean Cipher is an interesting encryption algorithm that it can converts any input into "Cetacean Language".