crypto

simplified crypto module using go crypto library. We are not implementing any crypto algorithms on our own but taking it from NIST approved implementation and providing an easy interface to use them.

Install

go get github.com/priyanshujain/crypto

Testing

1. perform tests

make test

2. produces coverage

make cover

3. run go vet linter

make lint

Packages

1. cipher: It includes both symmetric(AES) and asymmetric(RSA) key encryption.

2. signature: It includes signature algorithms like HMAC, RSA etc.

3. hash: It has common hash functions including SHA1 and SHA256.

4. Keystore: It implements key store and key generation for common cryptographic algorithms.

cipher

AES

It support the following modes of operations

1. CBC (https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Cipher_block_chaining_(CBC))
2. CTR (https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Counter_(CTR))
3. CFB (https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Cipher_feedback_(CFB))

and the following padding schemes

1. PKCS5 (https://en.wikipedia.org/wiki/Padding_(cryptography)#PKCS#5_and_PKCS#7)
2. PKCS7

RSA

It supports the following encryption schemes

1. PKCS1 (https://datatracker.ietf.org/doc/html/rfc3447)
2. OAEP (https://en.wikipedia.org/wiki/Optimal_asymmetric_encryption_padding)

signature

RSA

It supports the following signature schemes

1. PKCS1 (https://en.wikipedia.org/wiki/PKCS_1)
2. PSS (https://en.wikipedia.org/wiki/Probabilistic_signature_scheme)

Notes

1. It uses pem format for all public key infrastructure.