Crypt

Namespace: dmCrypt Language: C++ Type: Defold C++ File: crypt.h Source: engine/dlib/src/dmsdk/dlib/crypt.h Include: dmsdk/dlib/crypt.h

Various hash and encode/decode functions.

API

Algorithm

Type: ENUM encryption algorithm enumeration

Members

• dmCrypt::ALGORITHM_XTEA

dmCrypt::Base64Decode

Type: FUNCTION Base64 decode a buffer

Notes

• Call this function with *dst_len = 0 to obtain the required buffer size in *dst_len

Parameters

• src (const uint8_t*) - The source data to encode
• src_len (uint32_t) - key The length of source data in bytes
• dst (uint8_t*) - The destination buffer
• dst_len[in,out] (uint32_t*) - In: The length of the destination in bytes. Out: The length of the decoded string.

Returns

• success (bool) - true if the decoding went ok

dmCrypt::Base64Encode

Type: FUNCTION Base64 encode a buffer

Notes

• Call this function with *dst_len = 0 to obtain the required buffer size in *dst_len

Parameters

• src (const uint8_t*) - The source data to encode
• src_len (uint32_t) - key The length of source data in bytes
• dst (uint8_t*) - The destination buffer
• dst_len[in,out] (uint32_t*) - In: The length of the destination in bytes. Out: The length of the encoded string.

Returns

• success (bool) - true if the encoding went ok

dmCrypt::Decrypt

Type: FUNCTION Decrypt data in place

Parameters

• algo (dmCrypt::Algorithm) - algorithm
• data (const uint8_t*) - data
• datalen (uint32_t) - data length in bytes
• key (const uint8_t*) - key
• keylen (uint32_t) - key length

Returns

• result (dmCrypt::Result) - the decryption result

dmCrypt::Encrypt

Type: FUNCTION Encrypt data in place

Parameters

• algo (dmCrypt::Algorithm) - algorithm
• data (const uint8_t*) - data
• datalen (uint32_t) - data length in bytes
• key (const uint8_t*) - key
• keylen (uint32_t) - key length

Returns

• result (dmCrypt::Result) - the encryption result

dmCrypt::HashMd5

Type: FUNCTION Hash buffer using MD5

Parameters

• buf (const uint8_t*) - The source data to hash
• buflen (uint32_t) - key The length of source data in bytes
• digest (const uint8_t*) - The destination buffer (16 bytes)

dmCrypt::HashSha1

Type: FUNCTION Hash buffer using SHA1

Parameters

• buf (const uint8_t*) - The source data to hash
• buflen (uint32_t) - The length of source data in bytes
• digest (uint8_t*) - The destination buffer (20 bytes)

dmCrypt::HashSha256

Type: FUNCTION Hash buffer using SHA256

Parameters

• buf (const uint8_t*) - The source data to hash
• buflen (uint32_t) - key The length of source data in bytes
• digest (uint8_t*) - The destination buffer (32 bytes)

dmCrypt::HashSha512

Type: FUNCTION Hash buffer using SHA512

Parameters

• buf (const uint8_t*) - The source data to hash
• buflen (uint32_t) - key The length of source data in bytes
• digest (uint8_t*) - The destination buffer (64 bytes)

Result

Type: ENUM result enumeration

Members

• dmCrypt::RESULT_OK - = 0
• dmCrypt::RESULT_ERROR - = 1