Charles Givre created DRILL-5634: ------------------------------------ Summary: Add Crypto and Hash Functions Key: DRILL-5634 URL: https://issues.apache.org/jira/browse/DRILL-5634 Project: Apache Drill Issue Type: New Feature Components: Functions - Drill Affects Versions: 1.10.0 Reporter: Charles Givre Fix For: 1.11.0
This library contains a collection of cryptography-related functions for Apache Drill. It generally mirrors the crypto functions in MySQL. The package includes: * **`aes_encrypt()`/ `aes_decrypt()`**: implement encryption and decryption of data using the official AES (Advanced Encryption Standard) algorithm, previously known as “Rijndael.” `AES_ENCRYPT()` encrypts the string `str` using the key string `key_str` and returns a binary string containing the encrypted output. `AES_DECRYPT()` decrypts the encrypted string `crypt_str` using the key string `key_str` and returns the original cleartext string. If either function argument is NULL, the function returns NULL. ```sql > SELECT aes_encrypt( 'encrypted_text', 'my_secret_key' ) AS aes FROM > (VALUES(1)); +---------------------------+ | aes | +---------------------------+ | JkcBUNAn8ByKWCcVmNrKMA== | +---------------------------+ > SELECT aes_encrypt( 'encrypted_text', 'my_secret_key' ) AS encrypted, aes_decrypt(aes_encrypt( 'encrypted_text', 'my_secret_key' ),'my_secret_key') AS decrypted FROM (VALUES(1)); +---------------------------+-----------------+ | encrypted | decrypted | +---------------------------+-----------------+ | JkcBUNAn8ByKWCcVmNrKMA== | encrypted_text | +---------------------------+-----------------+ ``` * **`md5(<text>)`**: Returns the md5 hash of the text. (https://en.wikipedia.org/wiki/MD5) Usage: ```sql > select md5( 'testing' ) from (VALUES(1)); +-----------------------------------+ | EXPR$0 | +-----------------------------------+ | ae2b1fca515949e5d54fb22b8ed95575 | +-----------------------------------+ ``` * **`sha(<text>`) / `sha1(<text>)`**: Calculates an SHA-1 160-bit checksum for the string, as described in RFC 3174 (Secure Hash Algorithm). (https://en.wikipedia.org/wiki/SHA-1) The value is returned as a string of 40 hexadecimal digits, or NULL if the argument was NULL. Note that `sha()` and `sha1()` are aliases for the same function. ```sql > select sha1( 'testing' ) from (VALUES(1)); +-------------------------------------------+ | EXPR$0 | +-------------------------------------------+ | dc724af18fbdd4e59189f5fe768a5f8311527050 | +-------------------------------------------+ ``` * **`sha2(<text>`) / `sha256(<text>)`**: Calculates an SHA-2 256-bit checksum for the string. (https://en.wikipedia.org/wiki/SHA-2) The value is returned as a string of hexadecimal digits, or NULL if the argument was NULL. Note that `sha2()` and `sha256()` are aliases for the same function. ```sql > select sha2( 'testing' ) from (VALUES(1)); +-------------------------------------------------------------------+ | EXPR$0 | +-------------------------------------------------------------------+ | cf80cd8aed482d5d1527d7dc72fceff84e6326592848447d2dc0b0e87dfc9a90 | +-------------------------------------------------------------------+ ``` Additionally, there are also `sha384(<text>)` and `sha512(<text>)` functions which return SHA-2 hashes with 384 and 512 bit checksums. -- This message was sent by Atlassian JIRA (v6.4.14#64029)