edgelt

README

EDGE Toolkit

Multi-purpose cross-platform cryptography tool for symmetric and asymmetric encryption, recursive hash digest, hash-based message authentication code (HMAC), HMAC-based key derivation function (HKDF), Password-based key derivation function (PBKDF2), shared key agreement (ECDH), digital signature (RSA/ECDSA) and TLS 1.2 for small or embedded systems.

Fully OpenSSL compliant

Command-line Security Suite

Asymmetric

• ECDSA 224/256/384/521-bit
• Ed25519 (256-bit)
• RSA Cryptosystem
• SM2 (256-bit)

Symmetric

• Stream ciphers:

  • Chacha20 (256-bit)
  • RC4 128-bit [Obsolete]

• 128-bit block ciphers:

  • AES (Rijndael) 128/192/256-bit (Default)
  • ARIA 128/192/256-bit
  • Camellia 128/192/256-bit
  • Grasshopper (256-bit)
  • SEED 128-bit
  • SM4 (128-bit)

• 64-bit block ciphers:

  • DES (64-bit) [Obsolete]
  • 3DES (192-bit) [Almost Obsolete]
  • Blowfish 128-bit
  • CAST5 (128-bit)
  • GOST89 (256-bit)
  • IDEA (128-bit) [Obsolete]
  • Magma (256-bit)
  • RC2 (128-bit) [Obsolete]
  • RC5 (128-bit) [Obsolete]

• Modes of Operation:

  • CFB8: Cipher Feedback 8-bit
  • CFB: Cipher Feedback
  • CTR: Counter Mode (a.k.a. CNT)
  • OFB: Output Feedback

• Message Digest Algorithms:

  • BLAKE-2B 512-bit
  • BLAKE-2S 256-bit
  • GOST94 (256-bit)
  • MD4 (128-bit) [Obsolete]
  • MD5 (128-bit) [Obsolete]
  • RIPEMD (160-bit)
  • SHA1 (160-bit) [Obsolete]
  • SHA2 224/256/384/512-bit (default)
  • SHA3 224/256/384/512-bit
  • SM3 (256-bit)
  • Streebog 256/512-bit
  • Whirlpool (512-bit)

• Message Authentication Code Algorithms:

  • Poly1305 (128-bit)

Features

• Cryptographic Functions:

  • Asymmetric Encryption
  • Symmetric Encryption
  • Digital Signature
  • Recursive Hash Digest + Check
  • ECDH (Shared Key Agreement)
  • CMAC (Cipher-based message authentication code)
  • HMAC (Hash-based message authentication code)
  • HKDF (HMAC-based key derivation function)
  • PBKDF2 (Password-based key derivation function)
  • TLS 1.2 (Transport Layer Security)

• Non-cryptographic Functions:

  • Hex string encoder/dump/decoder (as xxd)
  • RandomArt (as OpenSSH)

Usage

 -algorithm string
       Public key algorithm: RSA, EC (ECDSA) or SM2. (default "RSA")
 -bits int
       Key length. (for keypair generation and symmetric encryption)
 -cert string
       Certificate path. (default "Certificate.pem")
 -check string
       Check hashsum file. ('-' for STDIN)
 -cipher string
       Symmetric algorithm: aes, blowfish, magma or sm4. (default "aes")
 -crypt string
       Encrypt/Decrypt with block ciphers.
 -digest string
       Target file/wildcard to generate hashsum list. ('-' for STDIN)
 -hex string
       Encode binary string to hex format and vice-versa. [enc|dec]
 -hkdf int
       HMAC-based key derivation function with given bit length.
 -info string
       Additional info. (for HKDF command)
 -ipport string
       Local Port/remote's side Public IP:Port.
 -iter int
       Iter. (for Password-based key derivation function) (default 1)
 -iv string
       Initialization Vector. (for symmetric encryption)
 -key string
       Asymmetric key, symmetric key or HMAC key, depending on operation.
 -mac string
       Compute Hash-based message authentication code.
 -md string
       Hash algorithm: sha256, sha3-256 or whirlpool. (default "sha256")
 -mode string
       Mode of operation: CFB8, CFB, CTR or OFB. (default "CTR")
 -pbkdf2
       Password-based key derivation function.
 -pkey string
       Generate keypair, Sign/Verify with RSA/ECDSA keypair.
 -private string
       Private key path. (for keypair generation) (default "Private.pem")
 -public string
       Public key path. (for keypair generation) (default "Public.pem")
 -pwd string
       Password. (for Private key PEM encryption)
 -rand int
       Generate random cryptographic key with given bit length.
 -recursive
       Process directories recursively. (for DIGEST command only)
 -salt string
       Salt. (for KDF only)
 -signature string
       Input signature. (verification only)
 -tcp string
       Encrypted TCP/IP Transfer Protocol. [server|ip|client]

Examples

Asymmetric RSA keypair generation:

./edgetk -pkey keygen -bits 4096 [-pwd "pass"]

Asymmetric EC keypair generation (256-bit):

./edgetk -pkey keygen -bits 256 -algorithm EC [-pwd "pass"]

Parse keys info:

./edgetk -pkey [text|modulus] [-pwd "pass"] -key private.pem
./edgetk -pkey [text|modulus] -key public.pem

Digital signature:

./edgetk -pkey sign -key private.pem [-pwd "pass"] < file.ext > sign.txt
sign=$(cat sign.txt|awk '{print $2}')
./edgetk -pkey verify -key public.pem -signature $sign < file.ext
echo $?

Encryption/decryption with RSA algorithm:

./edgetk -pkey encrypt -key public.pem < plaintext.ext > ciphertext.ext
./edgetk -pkey decrypt -key private.pem < ciphertext.ext > plaintext.ext

Generate Certificate:

./edgetk -pkey certgen -key private.pem [-pwd "pass"] [-cert "output.ext"]

Parse Certificate info:

./edgetk -pkey [text|modulus] -cert certificate.pem

TLS Layer (TCP/IP):

./edgetk -tcp ip > PubIP.txt
./edgetk -tcp server -cert certificate.pem -key private.pem [-ipport "8081"]
./edgetk -tcp client -cert certificate.pem -key private.pem [-ipport "127.0.0.1:8081"]

Symmetric key generation (256-bit):

./edgetk -rand 256

Encryption/decryption with block cipher:

./edgetk -crypt enc -key $256bitkey < plaintext.ext > ciphertext.ext
./edgetk -crypt dec -key $256bitkey < ciphertext.ext > plaintext.ext

HMAC:

./edgetk -mac hmac -key "secret" < file.ext

HKDF (HMAC-based key derivation function) (128-bit):

./edgetk -hkdf 128 -key "IKM" [-salt "salt"] [-info "AD"]

Hex Encoder/Decoder:

./edgetk -hex enc < file.ext > file.hex
./edgetk -hex dec < file.hex > file.ext
./edgetk -hex dump < file.ext

Contribute

Use issues for everything

• You can help and get help by:
  • Reporting doubts and questions
• You can contribute by:
  • Reporting issues
  • Suggesting new features or enhancements
  • Improve/fix documentation

License

This project is licensed under the ISC License.

Copyright (c) 2020-2022 Pedro F. Albanese - ALBANESE Research Lab.