Algorithms

CRC-16/XMODEM

Polynomial 0x1021 with init 0. The two bytes closing Stellar StrKeys and TON addresses
IDcrc16-xmodem35 / 46CRC · 16-bit
Hash / Non-cryptographic

CRC-16/XMODEM

Two bytes that close an address.

Digest
16-bit · 2 bytes
HMAC
no key mode
Security
NOT for security
Used by
Stellar, TON
3 options, 0 required

Sample

hex
3be4
base64
O+Q=

Options

encodingstring
default hex
Output encoding: hex, base64, base64url, binary
roundsnumber
default 1
How many times to hash, each round hashing the previous digest
chainstring
default bytes
What each round after the first hashes: bytes of the digest, or its lowercase hex

Access

Createcreate("crc16-xmodem")
CLIhashes crc16-xmodem 'hello world'
Tryplayground with the sample above
Kincrc32, crc64, crc24

CRC-16 with polynomial 0x1021, initial value 0, no reflection. Two bytes that end every Stellar StrKey (the G… account IDs) and every TON friendly address.

ts
create("crc16-xmodem").hash("123456789").digest; // "31c3", the standard check value

Printed big-endian, the way TON writes it. Stellar stores the same two bytes little-endian, so for a StrKey swap them. Checksum only, not for security.

ID@agntn/hashesv0.7.2MIT license

Every digest on this site is computed in your tab. No network call, no server hashing your input, so paste whatever you like into the playground. Just not your real password.