Base64 Conversion

Functions for encoding/decoding of strings in Base64 format. More...

Functions
SIMD_API void	SimdBase64Decode (const uint8_t *src, size_t srcSize, uint8_t *dst, size_t *dstSize)
	Decodes a Base64-encoded byte sequence into its original binary data. More...
SIMD_API void	SimdBase64Encode (const uint8_t *src, size_t size, uint8_t *dst)
	Encodes binary data into a Base64 string. More...
SIMD_INLINE std::string	Base64Decode (const std::string &src)
	Decode string to Base64. More...
SIMD_INLINE std::string	Base64Encode (const std::string &src)
	Encode string to Base64. More...

Detailed Description

Functions for encoding/decoding of strings in Base64 format.

Function Documentation

SimdBase64Decode()

void SimdBase64Decode	(	const uint8_t *	src,
		size_t	srcSize,
		uint8_t *	dst,
		size_t *	dstSize
	)

Decodes a Base64-encoded byte sequence into its original binary data.

The function decodes a Base64-encoded input (as defined by RFC 4648) into the original binary data. The input length must be a multiple of 4 and at least 4 bytes. Padding characters ('=') at the end of the input are handled automatically, so the actual decoded length may be 1 or 2 bytes less than srcSize / 4 * 3.

Note

This function has a C++ wrapper std::string Simd::Base64Decode(const std::string & src).

Parameters

[in]	src	- a pointer to the Base64-encoded input data. Its length must be a multiple of 4 and at least 4.
[in]	srcSize	- a size (in bytes) of the Base64-encoded input. Must be a non-zero multiple of 4.
[out]	dst	- a pointer to the output buffer for the decoded binary data. The buffer size must be at least srcSize / 4 * 3 bytes.
[out]	dstSize	- a pointer to a variable that receives the number of bytes written to the output buffer.

SimdBase64Encode()

void SimdBase64Encode	(	const uint8_t *	src,
		size_t	size,
		uint8_t *	dst
	)

Encodes binary data into a Base64 string.

The function encodes arbitrary binary data into its Base64 representation (as defined by RFC 4648). Every 3 input bytes are encoded as 4 Base64 characters. If the input length is not a multiple of 3, the output is padded with '=' characters to the next multiple of 4. The output is NOT null-terminated; its length is exactly (size + 2) / 3 * 4 bytes.

Note

This function has a C++ wrapper std::string Simd::Base64Encode(const std::string & src).

Parameters

[in]	src	- a pointer to the input binary data to be encoded.
[in]	size	- a size (in bytes) of the input data.
[out]	dst	- a pointer to the output buffer for the Base64-encoded string. The buffer size must be at least (size + 2) / 3 * 4 bytes.

Base64Decode()

std::string Base64Decode

(

const std::string &

src

)

Decode string to Base64.

Note

This function is a C++ wrapper for function SimdBase64Decode.

Parameters

[in]

src

- an input Base64 encoded string.

Returns

the output decoded string.

Base64Encode()

std::string Base64Encode

(

const std::string &

src

)

Encode string to Base64.

Note

This function is a C++ wrapper for function SimdBase64Encode.

Parameters

[in]

src

- an input original string.

Returns

the output Base64 encoded string.