Specs

decrypt(iodata(), iodata()) :: binary()

Decrypts str using key as the decryption key.

Example

iex> SimpleCrypto.decrypt("qCgs4rfReY5nTX39uHwjww==", "secret key")
"Hi there"

Specs

encrypt(iodata(), iodata()) :: binary()

Encrypts str using key as the encryption key.

Example

iex> SimpleCrypto.encrypt("Hi there", "secret key")
"qCgs4rfReY5nTX39uHwjww=="

Specs

hmac(iodata(), iodata()) :: binary()

Use key to generate a hash value of str using the HMAC method.

Example

iex> SimpleCrypto.hmac("HMAC me now!", "secret key")
"E7235176D81E29EC202B117324C7B3A2A6180F2A2A163D79E5A6BB58E7A61A7B"

Specs

hmac_base64(iodata(), iodata()) :: binary()

Use key to generate a base64-encoded hash value of str using the HMAC method

Example

iex> SimpleCrypto.hmac_base64("HMAC and base64 me now!", "secret key")
"Xqsja2bp+jfleCkl4bRFZoyljM2RL0DC4PNBkTtKXrk="

Specs

id_rand_str(pos_integer()) :: binary()

Generate a random string of length length that is suitable to use as an easily copy/pastable ID (no hyphens or other problematic characters).

Example

iex> SimpleCrypto.id_rand_str(12)
"SWm6fDWvd4id"

Specs

otp_rand_str(pos_integer()) :: binary()

Generate a random string of length length that is suitable to use as an OTP (One-time pad) code.

Example

iex> SimpleCrypto.otp_rand_str(16)
"UXGMUXNUANHONKZR"

Specs

pad(iodata(), pos_integer(), iodata()) :: binary()

DEPRECATED: Use pad_by_width/3 instead.

Specs

pad_by_width(iodata(), pos_integer(), iodata()) :: binary()

Pad the end of str using padding, so that the total length becomes a multiple of width.

Example

iex> SimpleCrypto.pad_by_width("The length of this string is 76 before padding, 4 less than a multiple of 16", 16, ".")
"The length of this string is 76 before padding, 4 less than a multiple of 16...."

Specs

rand_int_str(pos_integer()) :: binary()

Generate a random string of length length, consisting only of integers.

Example

iex> SimpleCrypto.rand_int_str(6)
"811238"

Specs

rand_str(pos_integer()) :: binary()

Generate a random string of length length.

Example

iex> SimpleCrypto.rand_str(32)
"rvbAtDMdVPJu2J-QDyAxgOLAL0LQWL0w"

Specs

sha256(iodata()) :: binary()

Hashes str using the SHA256 algorithm.

Example

iex> SimpleCrypto.sha256("Turn me into SHA256")
"87A3AABED406EFBCD4956E2E32E75948DB88E7ED35CACD4D8B66669EA849C102"

Specs

sha256_base64(iodata()) :: binary()

Hashes str using the SHA256 algorithm, then base64-encodes it.

Example

iex> SimpleCrypto.sha256_base64("Turn me into base64-encoded SHA256")
"/UWKWh0NJFgCf3mWSIJiDuJA9HCY94T2l/XJ+CyreAM="