security

func Decrypt ¶

func Decrypt(cipherText string, key string) ([]byte, error)

Decrypt decrypts encrypted text with key (must be valid 32 chars aes key).

func Encrypt ¶

func Encrypt(data []byte, key string) (string, error)

Encrypt encrypts data with key (must be valid 32 char aes key).

func Equal ¶

func Equal(hash1 string, hash2 string) bool

Equal compares two hash strings for equality without leaking timing information.

func HS256 ¶

func HS256(text string, secret string) string

HS256 creates a HMAC hash with sha256 digest algorithm.

func HS512 ¶

func HS512(text string, secret string) string

HS512 creates a HMAC hash with sha512 digest algorithm.

func MD5 ¶

func MD5(text string) string

MD5 creates md5 hash from the provided plain text.

func NewJWT ¶

func NewJWT(payload jwt.MapClaims, oldSigninKey string, secondsDuration int64) (string, error)

NewJWT generates and returns new HS256 signed JWT.

func ParseJWT ¶

func ParseJWT(token string, oldVerificationKey string) (jwt.MapClaims, error)

ParseJWT verifies and parses JWT and returns its claims.

func ParseUnverifiedJWT ¶

func ParseUnverifiedJWT(token string) (jwt.MapClaims, error)

ParseUnverifiedJWT parses JWT and returns its claims but DOES NOT verify the signature.

It verifies only the exp, iat and nbf claims.

func PseudorandomString ¶

func PseudorandomString(length int) string

PseudorandomString generates a pseudorandom string with the specified length.

The generated string matches [A-Za-z0-9]+ and it's transparent to URL-encoding.

For a cryptographically random string (but a little bit slower) use RandomString instead.

func PseudorandomStringWithAlphabet ¶

func PseudorandomStringWithAlphabet(length int, alphabet string) string

PseudorandomStringWithAlphabet generates a pseudorandom string with the specified length and characters set.

For a cryptographically random (but a little bit slower) use RandomStringWithAlphabet instead.

func RandomSnowflakeId ¶

func RandomSnowflakeId() string

RandomSnowflakeId generates a snowflake id.

The generated id is a string like "1537200202186752" 16-20 characters length.

func RandomString ¶

func RandomString(length int) string

RandomString generates a cryptographically random string with the specified length.

The generated string matches [A-Za-z0-9]+ and it's transparent to URL-encoding.

func RandomStringWithAlphabet ¶

func RandomStringWithAlphabet(length int, alphabet string) string

RandomStringWithAlphabet generates a cryptographically random string with the specified length and characters set.

It panics if for some reason rand.Int returns a non-nil error.

func S256Challenge ¶

func S256Challenge(code string) string

S256Challenge creates base64 encoded sha256 challenge string derived from code. The padding of the result base64 string is stripped per RFC 7636.

func SHA256 ¶

func SHA256(text string) string

SHA256 creates sha256 hash as defined in FIPS 180-4 from the provided text.

func SHA512 ¶

func SHA512(text string) string

SHA512 creates sha512 hash as defined in FIPS 180-4 from the provided text.