> ## Documentation Index > Fetch the complete documentation index at: https://docs.xano.com/llms.txt > Use this file to discover all available pages before exploring further. # Security ## create\_uid `value|create_uid` ```js theme={null} "seed"|create_uid // Returns a unique 64-bit unsigned int 123|create_uid // Returns a unique 64-bit unsigned int based on 123 ``` ## decrypt `value|decrypt:algorithm:key:iv` ```js theme={null} encrypted_data|decrypt:"aes-128-cbc":"secret_key":"" // Returns decrypted data encrypted_data|decrypt:"aes-256-cbc":"key":"iv" // Returns decrypted data with IV ``` ## encrypt `value|encrypt:algorithm:key:iv` ```js theme={null} "sensitive data"|encrypt:"aes-128-cbc":"secret_key":"" // Returns encrypted data "sensitive data"|encrypt:"aes-256-cbc":"key":"iv" // Returns encrypted data with IV ``` ## hmac\_sha1 / hmac\_sha256 / hmac\_384 / hmac\_512 `value|hmac_sha1:secret:hex_output` ```js theme={null} "data"|hmac_sha1:"secret":true // Returns hex HMAC-SHA1 signature "data"|hmac_sha1:"secret":false // Returns base64 HMAC-SHA1 signature ``` ## jwe\_decode `value|jwe_decode:key:header:key_algo:enc_algo:max_age` ```js theme={null} token|jwe_decode:"{}":"{}":"A256KW":"A256CBC-HS512":0 // Returns decoded JWE token ``` ## jwe\_encode `value|jwe_encode:key:header:key_algo:enc_algo:max_age` ```js theme={null} data|jwe_encode:"{}":"{}":"A256KW":"A256CBC-HS512":0 // Returns JWE token ``` ## jws\_decode `value|jws_decode:key:header:algo:max_age` ```js theme={null} token|jws_decode:"{}":"{}":"HS256":0 // Returns decoded JWS token ``` ## jws\_encode `value|jws_encode:key:header:algo:max_age` ```js theme={null} data|jws_encode:"{}":"{}":"HS256":0 // Returns JWS token ``` ## md5 `value|md5:numeric` ```js theme={null} "data"|md5:true // Returns numeric MD5 hash "data"|md5:false // Returns string MD5 hash ``` ## secureid\_decode `value|secureid_decode:key` ```js theme={null} encrypted_id|secureid_decode:"secret_key" // Returns original ID ``` ## secureid\_encode `value|secureid_encode:algorithm` ```js theme={null} "123"|secureid_encode:"" // Returns encrypted ID with default algorithm "123"|secureid_encode:"aes-256" // Returns encrypted ID with specified algorithm ``` ## sha1 / sha256 / sha384 / sha512 `value|sha1:hex_output` ```js theme={null} "data"|sha1:true // Returns hex SHA1 hash "data"|sha1:false // Returns binary SHA1 hash ``` ## uuid `value|uuid` ```js theme={null} ""|uuid // Returns a new UUID ```