1、oracle中加密function
CREATE OR REPLACE FUNCTION ENCRYPT_FUNCTION(
V_STR VARCHAR2, V_KEY VARCHAR2) RETURN VARCHAR2 AS V_KEY_RAW RAW(24);
V_STR_RAW RAW(2000);
V_RETURN_STR VARCHAR2(2000);
V_TYPE PLS_INTEGER;
BEGIN
/*************************************************
加密函数FUN_ENCRYPTION
入参：
V_STR 输入明文字符串
V_KEY 输入密钥字符串，长度为24字节
返回值：
V_RETURN_STR返回密文字符串，约定返回为 16进制密文字符串
异常处理：
此函数不对任何异常做捕捉处理，请相应的程序模块对异常做捕捉处理。
加密方式：
密钥位数:AES192 DBMS_CRYPTO.ENCRYPT_AES192
连接方式:CBC DBMS_CRYPTO.CHAIN_CBC
填充方式:PKCS5 DBMS_CRYPTO.PAD_PKCS5
**************************************************/
V_KEY_RAW := UTL_I18N.STRING_TO_RAW(V_KEY, 'UTF8');
V_STR_RAW := UTL_I18N.STRING_TO_RAW(V_STR, 'UTF8');
-- 指定‘密钥算法’、‘工作模式’、‘填充方式’
V_TYPE := DBMS_CRYPTO.ENCRYPT_DES + DBMS_CRYPTO.CHAIN_ECB +
DBMS_CRYPTO.PAD_PKCS5;
V_STR_RAW := DBMS_CRYPTO.ENCRYPT(SRC => V_STR_RAW,
TYP => V_TYPE,
KEY => V_KEY_RAW);
V_RETURN_STR := RAWTOHEX(V_STR_RAW);
RETURN V_RETURN_STR;
/* EXCEPTION
WHEN OTHERS THEN
RETURN SQLERRM||SQLCODE ; */
END;2、oracle中解密function
CREATE OR REPLACE FUNCTION DECRYPT_FUNCTION(V_STR VARCHAR2, V_KEY VARCHAR2)
RETURN VARCHAR2 AS
V_KEY_RAW RAW(24);
V_STR_RAW RAW(2000);
V_RETURN_STR VARCHAR2(2000);
V_TYPE PLS_INTEGER;
BEGIN
/************************************************
解密函数FUN_DECRYPTION
入参：
V_STR 输入密文字符串,约定密文为16进制字符串
V_KEY 输入密钥字符串，长度为24字节
返回值：
V_RETURN_STR返回明文字符串
异常处理：
此函数不对任何异常做捕捉处理，请相应的程序模块对异常做捕捉处理。
加密方式：
密钥位数:AES192 DBMS_CRYPTO.ENCRYPT_AES192
连接方式:CBC DBMS_CRYPTO.CHAIN_CBC
填充方式:PKCS5 DBMS_CRYPTO.PAD_PKCS5
***************************************************/
V_KEY_RAW := UTL_I18N.STRING_TO_RAW(V_KEY, 'UTF8');
V_STR_RAW := HEXTORAW(V_STR);
-- 指定‘密钥算法’、‘工作模式’、‘填充方式’
V_TYPE := DBMS_CRYPTO.ENCRYPT_DES + DBMS_CRYPTO.CHAIN_ECB +
DBMS_CRYPTO.PAD_PKCS5;
V_STR_RAW := DBMS_CRYPTO.DECRYPT(SRC => V_STR_RAW,
TYP => V_TYPE,
KEY => V_KEY_RAW);
V_RETURN_STR := UTL_I18N.RAW_TO_CHAR(V_STR_RAW, 'UTF8');
RETURN V_RETURN_STR;
/* EXCEPTION
WHEN OTHERS THEN
RETURN SQLERRM||SQLCODE ; */
END;
测试sql：
加密：SELECT ENCRYPT_FUNCTION('1', '1111aaaa') FROM DUAL
输出：A23A359C2B1946A6
解密：SELECT DECRYPT_FUNCTION('A23A359C2B1946A6', '1111aaaa') FROM DUAL
输出：1
在上述function定义中声明的：
V_TYPE := DBMS_CRYPTO.ENCRYPT_DES + DBMS_CRYPTO.CHAIN_ECB + DBMS_CRYPTO.PAD_PKCS5;
与java中默认的参数一直，以保证和java跨平台的加解密可以顺利执行。上述代码是针对des算法进行的，也可进行其他的配置
Oracle 加密包 DBMS_CRYPTO 中有好多不能定义参数的常量，可参考文章：/post/16888/215845/
Oracle DBMS_CRYPTO
Version 10.2
General Information
Source
{ORACLE_HOME}/rdbms/admin/dbmsobtk.sql
Algorithm Constants
Name
Data Type
Value
Hash Functions
HASH_MD4 (128 bit hash)
PLS_INTEGER
1
HASH_MD5 (128 bit hash)
PLS_INTEGER
2
HASH_SH1 (160 bit hash)
PLS_INTEGER
3
MAC Functions
HMAC_MD5 (128 bit hash)
PLS_INTEGER
1
HMAC_SH1 (160 bit hash)
PLS_INTEGER
2
Block Cipher Algorithms
ENCRYPT_DES (56 bit)
PLS_INTEGER
1; -- 0x0001
ENCRYPT_3DES_2KEY (128 bit)
PLS_INTEGER
2; -- 0x0002
ENCRYPT_3DES
PLS_INTEGER
3; -- 0x0003
ENCRYPT_AES128 (128 bit)
PLS_INTEGER
6; -- 0x0006
ENCRYPT_AES192 (192 bit)
PLS_INTEGER
7; -- 0x0007
ENCRYPT_AES256 (256 bit)
PLS_INTEGER
8; -- 0x0008
ENCRYPT_RC4 (Stream Cipher)
PLS_INTEGER
129; -- 0x0081
Block Cipher Chaining Modifiers
CHAIN_CBC (Cipher Block Chaining)
PLS_INTEGER
256; -- 0x0100
CHAIN_CFB (Cipher Feedback)
PLS_INTEGER
512; -- 0x0200
CHAIN_ECB (Electronic cookbook)
PLS_INTEGER
768; -- 0x0300
CHAIN_OFB (Output Feedback)
PLS_INTEGER
1024; -- 0x0400
Block Cipher Padding Modifiers
PAD_PKCS5 (Complies with PKCS #5)
PLS_INTEGER
4096; -- 0x1000
PAD_NONE (No Dadding)
PLS_INTEGER
8192; -- 0x2000
PAD_ZERO (Pad with Zeros)
PLS_INTEGER
12288; -- 0x3000
Block Ciphers Suites
DES_CBC_PKCS5
PLS_INTEGER
ENCRYPT_DES
+ CHAIN_CBC
+ PAD_PKCS5;
DES3_CBC_PKCS5
PLS_INTEGER
ENCRYPT_3DES
+ CHAIN_CBC
+ PAD_PKCS5;
Dependencies
DBMS_CRYPTO_FFI
DECRYPTBYTES
ENCRYPTBYTES
DECRYPT
ENCRYPT
UTL_RAW
Exceptions
Error Code
Reason
28827
The specified cipher suite is not defined
28829
No value has been specified for the cipher suite to be used
28233
Source data was previously encrypted
28234
DES: Specified key size too short. DES keys must be at least 8 bytes (64 bits).
AES: Specified key size is not supported. AES keys must be 128, 192, or 256 bits
28239
The encryption key has not been specified or contains a NULL value
DECRYPT
Decrypt crypt text data using stream or block cipher with user supplied key and optional iv
Overload 1
dbms_crypto.decrypt(src IN RAW, typ IN PLS_INTEGER, key IN RAW,
iv IN RAW DEFAULT NULL) RETURN RAW;
See Encrypt Overload 1 demo
Overload 2
dbms_crypto.decrypt(dst IN OUT NOCOPY BLOB, src IN BLOB,
typ IN PLS_INTEGER, key IN RAW, iv IN RAW DEFAULT NULL);
Overload 3
dbms_crypto.decrypt (dst IN OUT NOCOPY CLOB CHARACTER SET ANY_CS,
src IN BLOB, typ IN PLS_INTEGER, key IN RAW,
iv IN RAW DEFAULT NULL);
ENCRYPT
Encrypt plain text data using stream or block cipher with user supplied key and optional iv
Overload 1
dbms_crypto.encrypt(src IN RAW, typ IN PLS_INTEGER, key IN RAW,
iv IN RAW DEFAULT NULL) RETURN RAW;
set serveroutput on
DECLARE
l_credit_card_no VARCHAR2(19) := '1234-5678-9012-3456';
l_ccn_raw RAW(128) := utl_raw.cast_to_raw(l_credit_card_no);
l_key RAW(128) := utl_raw.cast_to_raw('abcdefgh');
l_encrypted_raw RAW(2048);
l_decrypted_raw RAW(2048);
BEGIN
dbms_output.put_line('Original : ' || l_credit_card_no);
l_encrypted_raw := dbms_crypto.encrypt(l_ccn_raw,
dbms_crypto.des_cbc_pkcs5, l_key);
dbms_output.put_line('Encrypted : ' ||
RAWTOHEX(utl_raw.cast_to_raw(l_encrypted_raw)));
l_decrypted_raw := dbms_crypto.decrypt(src => l_encrypted_raw,
typ => dbms_crypto.des_cbc_pkcs5, key => l_key);
dbms_output.put_line('Decrypted : ' ||
utl_raw.cast_to_varchar2(l_decrypted_raw));
END;
/
set serveroutput on
DECLARE
enc_val RAW(2000);
l_key RAW(2000);
l_key_len NUMBER := 128/8; -- convert bits to bytes
l_mod NUMBER := dbms_crypto.ENCRYPT_AES128
+ dbms_crypto.CHAIN_CBC+ dbms_crypto.PAD_PKCS5;
BEGIN
l_key := dbms_crypto.randombytes(l_key_len);
enc_val := dbms_crypto.encrypt(
utl_i18n.string_to_raw('1234-5678-9012-3456', 'AL32UTF8'),
l_mod, l_key);
dbms_output.put_line(enc_val);
END;
/
Overload 2
dbms_crypto.encrypt(dst IN OUT NOCOPY BLOB, src IN BLOB,
typ IN PLS_INTEGER, key IN RAW, iv IN RAW DEFAULT NULL);
Overload 3
dbms_crypto.encrypt(dst IN OUT NOCOPY BLOB,
src IN CLOB CHARACTER SET ANY_CS, typ IN PLS_INTEGER, key IN RAW, iv IN RAW DEFAULT NULL);
dbms_crypto.encrypt(UTL_RAW.CAST_TO_RAW(CONVERT('XXX','AL32UTF8')),typ,key);
HASH
Hash source data by cryptographic hash type
Overload 1
dbms_crypto.hash(src IN RAW, typ IN PLS_INTEGER) RETURN RAW;
Overload 2
dbms_crypto.hash(src IN BLOB, typ IN PLS_INTEGER) RETURN RAW;
Overload 3
dbms_crypto.hash(src IN CLOB CHARACTER SET ANY_CS,
typ IN PLS_INTEGER) RETURN RAW;
MAC
Message Authentication Code algorithms provide keyed message protection
Overload 1
dbms_crypto.mac(src IN RAW, typ IN PLS_INTEGER, key IN RAW)
RETURN RAW;
Overload 2
dbms_crypto.mac(src IN BLOB, typ IN PLS_INTEGER, key IN RAW)
RETURN RAW;
Overload 3
dbms_crypto.mac(src IN CLOB CHARACTER SET ANY_CS,
typ IN PLS_INTEGER, key IN RAW) RETURN RAW;
RANDOMBYTES
Returns a raw value containing a pseudo-random sequence of bytes
dbms_crypto.randomnytes(number_bytes PLS_INTEGER) RETURN RAW;
SELECTdbms_crypto.randombytes(1) FROM dual;
SELECT LENGTH(dbms_crypto.randombytes(1)) FROM dual;
SELECT dbms_crypto.randombytes(28) FROM dual;
SELECT LENGTH(dbms_crypto.randombytes(28)) FROM dual;
SELECT dbms_crypto.randombytes(64) FROM dual;
SELECT LENGTH(dbms_crypto.randombytes(64)) FROM dual;
RANDOMINTEGER
Returns a random BINARY_INTEGER
dbms_crypto.randominteger RETURN NUMBER;
SELECTdbms_crypto.randominteger FROM dual;
RANDOMNUMBER
Returns a random Oracle Number
dbms_crypto.randomnumber RETURN NUMBER;
SELECTdbms_crypto.randomnumber FROM dual;
