diff --git a/README.md b/README.md
index 4fcab42..0af68a2 100644
--- a/README.md
+++ b/README.md
@@ -1,14 +1,98 @@
-##CocoaSecurity
+##CocoaSecurity 1.0
 
 Kelp http://kelp.phate.org/ <br/>
 MIT License
 Apache Licence 2.0: GTMBase64 by Google Inc.
 
 
-CocoaSecurity include 4 classes, CocoaSecurity, CocoaSecurityResult, CocoaSecurityEncoder and CocoaSecurityDecoder.
+CocoaSecurity include 4 classes, **CocoaSecurity**, **CocoaSecurityResult**, **CocoaSecurityEncoder** and **CocoaSecurityDecoder**.
 
 ###CocoaSecurity
 CocoaSecurity is core. It provides AES encrypt, AES decrypt, Hash(MD5, HmacMD5, SHA1~SHA512, HmacSHA1~HmacSHA512) messages.
+<br/><br/>
+**MD5:**
+```objective-c
+CocoaSecurity *cs = [[[CocoaSecurity alloc] init] autorelease];
+CocoaSecurityResult *md5Result = [cs md5:@"kelp"];
+
+// md5Result.hex = 'C40C69779E15780ADAE46C45EB451E23'
+// md5Result.hexLower = 'c40c69779e15780adae46c45eb451e23'
+// md5Result.base64 = 'xAxpd54VeAra5GxF60UeIw=='
+```
+**SHA256:**
+```objective-c
+CocoaSecurity *cs = [[[CocoaSecurity alloc] init] autorelease];
+CocoaSecurityResult *sha256Result = [cs sha256:@"kelp"];
+
+// sha256Result.hexLower = '280f8bb8c43d532f389ef0e2a5321220b0782b065205dcdfcb8d8f02ed5115b9'
+// sha256Result.base64 = 'KA+LuMQ9Uy84nvDipTISILB4KwZSBdzfy42PAu1RFbk='
+```
+**default AES Encrypt:**<br/>
+key -> SHA384(key).sub(0, 32)<br/>
+iv -> SHA384(key).sub(32, 16)
+```objective-c
+CocoaSecurity *cs = [[[CocoaSecurity alloc] init] autorelease];
+CocoaSecurityResult *aesDefault = [cs aesEncrypt:@"kelp" key:@"key"];
+
+// aesDefault.base64 = 'ez9uubPneV1d2+rpjnabJw=='
+```
+**AES256 Encrypt & Decrypt:**
+```objective-c
+CocoaSecurity *cs = [[[CocoaSecurity alloc] init] autorelease];
+
+CocoaSecurityResult *aes256 = [cs aesEncrypt:@"kelp"
+                                      hexKey:@"280f8bb8c43d532f389ef0e2a5321220b0782b065205dcdfcb8d8f02ed5115b9"
+                                       hexIv:@"CC0A69779E15780ADAE46C45EB451A23"];
+// aes256.base64 = 'WQYg5qvcGyCBY3IF0hPsoQ=='
+
+CocoaSecurityResult *aes256Decrypt = [cs aesDecryptWithBase64:@"WQYg5qvcGyCBY3IF0hPsoQ==" 
+                                      hexKey:@"280f8bb8c43d532f389ef0e2a5321220b0782b065205dcdfcb8d8f02ed5115b9"
+                                       hexIv:@"CC0A69779E15780ADAE46C45EB451A23"];
+// aes256Decrypt.utf8String = 'kelp'
+```
 
 
-1
\ No newline at end of file
+###CocoaSecurityResult
+CocoaSecurityResult is the result class of CocoaSecurity. It provides convert result data to NSData, NSString, HEX string, Base64 string.
+
+```objective-c
+@property (retain) NSData *data;
+@property (retain, readonly) NSString *utf8String;
+@property (retain, readonly) NSString *hex;
+@property (retain, readonly) NSString *hexLower;
+@property (retain, readonly) NSString *base64;
+```
+
+
+###CocoaSecurityEncoder
+CocoaSecurityEncoder provides convert NSData to HEX string, Base64 string.
+
+```objective-c
+- (NSString *)base64: (NSData *)data;
+- (NSString *)hex: (NSData *)data useLower: (bool)isOutputLower;
+```
+**example:**
+```objective-c
+CocoaSecurityEncoder *encoder = [[[CocoaSecurityEncoder alloc] init] autorelease];
+NSString *str1 = [encoder hex:[@"kelp" dataUsingEncoding:NSUTF8StringEncoding] useLower:false];
+// str1 = '6B656C70'
+NSString *str2 = [encoder base64:[@"kelp" dataUsingEncoding:NSUTF8StringEncoding]];
+// str2 = 'a2VscA=='
+```
+
+###CocoaSecurityDecoder
+CocoaSecurityEncoder provides convert HEX string or Base64 string to NSData.
+
+```objective-c
+- (NSData *)base64: (NSString *)data;
+- (NSData *)hex: (NSString *)data;
+```
+**example:**
+```objective-c
+CocoaSecurityDecoder *decoder = [[[CocoaSecurityDecoder alloc] init] autorelease];
+NSData *data1 = [decoder hex:@"CC0A69779E15780ADAE46C45EB451A23"];
+// data1 = <cc0a6977 9e15780a dae46c45 eb451a23>
+NSData *data2 = [decoder base64:@"zT1PS64MnXIUDCUiy13RRg=="];
+// data2 = <cd3d4f4b ae0c9d72 140c2522 cb5dd146>
+```
+