Java

Encryption Examples for Java

• 2-Key Triple DES (112 bits)
• 3DES Encryption, ECB, CBC modes
• ChaCha20 Encryption
• Poly1305 MAC
• AES Encryption
• AEAD AES 128-bit GCM
• ARC4 Encryption (ARCFOUR)
• Blowfish Encryption, ECB, CBC, CFB modes
• Calculate MD5 Hash of File (or SHA-1, and other hash algorithms)
• PBES1 Password-Based Encryption (PBE)
• PBES2 Password-Based Encryption (PBE)
• PBKDF1 - Derive Key from Password
• PBKDF2 - Derive Key from Password
• RC2 Encryption and Decryption
• Twofish Encryption - 128-bit, 192-bit, 256-bit
• ARC4 PRNG (Pseudo Random Number Generator)
• WPA Key Calculation from PassPhrase to Hex
• Base64 Encode/Decode a String
• Create PKCS7 Signed File (.p7m)
• Sign a File to Create a .p7m File (using a PFX)
• Sign a File to Create a .p7s (Detached Signature)
• Decrypt a .p7m File (using a PFX)
• Encrypt File to PKCS7 .p7m
• Extract a File from a .p7m (PKCS7 Signed-Data)
• Hash Algorithms: SHA-1, HAVAL, MD2, MD5, SHA-256, SHA-384, SHA-512
• Quoted-Printable Encode/Decode a String
• SHA3 Hash to Match Test Vectors
• Hash File: SHA-1, HAVAL, MD2, MD5, SHA-256, SHA-384, SHA-512
• MD4 Hash a String
• RIPEMD Hash a String
• HMAC SHA-1 Matching FIPS Examples
• HMAC MD5 to Match RFC 2022 Test Vectors
• HMAC SHA-1 to Match RFC 2022 Test Vectors
• Match MySQL AES_ENCRYPT Function
• Re-Encode (How to convert encodings)
• URL Signing for Google Maps API
• CAdES BES Detached Signature
• UU Encoding and Decoding
• Deriving a 256-bit AES Secret Key from a Password Using SHA256
• HMAC with SHA256
• Generate UUID
• Punycode Encoding / Decoding
• AES CTR Mode Encryption
• AES CFB Cipher Feedback Mode Encryption
• AES OFB Output Feedback Mode Encryption
• Twofish CFB Cipher Feedback Mode Encryption
• Twofish OFB Output Feedback Mode Encryption
• Blowfish CFB Cipher Feedback Mode Encryption
• Blowfish OFB Output Feedback Mode Encryption
• Base64url Encoding
• Streaming Encryption
• AES Encryption
• Generate Encryption Key
• Calculate MD5 Hash of File (or SHA1, SHA256, and other hash algorithms)
• Plaza API (bol.com) HMAC-SHA256 Authentication
• MD5 Hash a String (such as a password string)
• CAdES BES Detached Signature
• CAdES BES Attached (Opaque) Signature
• Tips on Matching Encryption with another System
• Duplicate .NET's Rfc2898DeriveBytes Functionality
• Demonstrate HMAC SHA256
• Hash the Contents of a File (SHA256 and other hash algorithms)
• Hash the Contents of a String (SHA256 and other hash algorithms)
• UN/EDIFACT Syntax Level A Encoding/Decoding
• BCrypt Hash a Password
• BCrypt Verify a Password (Check if Password is Correct)
• AES Key Wrap / Unwrap
• Decimal Integer List Encoding
• Encrypt / Decrypt a File and Verify it has not Changed
• RSAES-OAEP Encrypt String with AES-128 Content Encryption and SHA256
• Example for both AES-128 and ChaCha20 to Encrypt Binary Data
• RSAES-OAEP Encrypt/Decrypt Binary Data with AES-128 and SHA56
• AES and CHACHA20 Encrypt/Decrypt Text
• Encrypting/decrypting a data stream.
• Encrypt File in Chunks using AES CBC
• Encrypt File using X.509 Certificate using AES in CBC Mode
• Blowfish Encryption to Match PHP's Mcrypt Extension
• Encrypt a file to a PKCS7 encrypted message using multiple certificates from different users
• Hash a Hex String
• openssl enc decrypt (duplicate "openssl enc -d -aes-256-cbc -in hamlet.enc -out hamlet_dec.xml -pass file:./secret.txt")
• HMAC Hex String
• Encrypt using Cert to produce -----BEGIN PKCS7----- ... -----END PKCS7-----
• Sign and Encrypt using Cert to produce -----BEGIN PKCS7----- ... -----END PKCS7-----
• Encrypt/Decrypt using PFX to produce -----BEGIN PKCS7----- ... -----END PKCS7-----
• Password_Digest = Base64 (SHA-1 ( nonce + created + SHA-1 (password) ) )
• Generate Salt in Hex or Base64 Format
• MIME Header Q and B Encoding and Decoding
• Decrypt a SAML Response
• Encode Integer to Hex or Base64 using N Bytes
• HOTP Algorithm: HMAC-Based One-Time Password Algorithm
• Generate TOTP using Base32 Secret (6 Digits, Time-based, 30-second period)
• TOTP Authenticator: Duplicate Results of Online Tools
• TOTP Algorithm: Time-Based One-Time Password Algorithm
• Google Authenticator Algorithm
• Ascii85 Encoding and Decoding
• AES Encrypt String (utf-8 byte representation) and return Base64
• Decrypt a govtalk.gov.uk SOAP GovTalkMessage
• AES Encryption ECB Mode with PKCS7 Padding
• Duplicate Java AES Results
• Duplicate Java HMAC-SHA1 using Chilkat
• URL Encoding and Decoding
• Hashing Encoded Data
• Get Contents of File as Base64
• 56-bit DES Encryption, ECB, CBC modes
• AES XTS Mode
• AES XTS Mode where Tweak Value is Data Unit Number
• Simple AES ECB Decryption
• BIP39 Compute Binary Seed from Mnemonic
• AES-CMAC
• Decrypt 256-bit AES GCM Produced by Something Unknown
• Duplicate SQL Server ENCRYPTBYPASSPHRASE
• AES GCM Encrypt and Decrypt a File