Class
EncodingService
NotCreatableServiceNotReplicated
Service providing common encoding, hashing, and compression methods.
Service providing common encoding, hashing, and compression methods.
Methods 7#
| Base64Decode | Decodes a Base64-encoded buffer into a new buffer containing the original binary data.Safe |
| Base64Encode | Encodes binary data from a buffer into Base64 format, returning the result as a new buffer.Safe |
| CompressBuffer | Compresses binary buffer data using the specified algorithm and compression level.Safe |
| ComputeBufferHash | Computes a cryptographic hash of a buffer's binary data using the specified algorithm.Safe |
| ComputeStringHash | Computes a cryptographic hash of a string using the specified algorithm.Safe |
| DecompressBuffer | Decompresses binary buffer data that was compressed with the specified algorithm.Safe |
| GetDecompressedBufferSize | Returns the expected decompressed size of a compressed buffer, or nil if the size is unknown or invalid.Safe |
Base64Decode(input: buffer): buffer#
Safe
Method takes a buffer with data encoded in Base64 format and
decodes it into a new buffer.
If the input is not valid Base64 data, this method throws an error.
Base64 data is most often used for binary data encoding, so these
functions are designed to work on buffer values.
If the data is stored in a string, buffer.fromstring can be used
to quickly convert it into a buffer.
| Name | Type | Default | Description |
|---|---|---|---|
input | buffer | buffer containing Base64 data to decode |
Returns
buffer—bufferwith the decoded result
Base64Encode(input: buffer): buffer#
Safe
Method takes a buffer with binary data and encodes it using
Base64.
Encoded result is returned as a new buffer.
| Name | Type | Default | Description |
|---|---|---|---|
input | buffer | buffer containing binary data to encode |
Returns
buffer—bufferwith the encoded result
CompressBuffer(input: buffer, algorithm: CompressionAlgorithm, compressionLevel: int = 1): buffer#
Safe
Compresses the binary data stored in a buffer using the
specified compression algorithm and compression level. The higher the
compression level, the longer it takes to compress, but the resulting
compression ratio might increase.
For CompressionAlgorithm.Zstd, the allowed compression values are
from -7 to 22 inclusive.
| Name | Type | Default | Description |
|---|---|---|---|
input | buffer | buffer with binary data to compress | |
algorithm | CompressionAlgorithm | CompressionAlgorithm to use for compression | |
compressionLevel | int | 1 | optional integer compression level to use |
Returns
buffer—bufferwith compressed binary data
ComputeBufferHash(input: buffer, algorithm: HashAlgorithm): buffer#
Safe
Uses a
cryptographic hash function
to compute a hash of the input buffer. Returns a new
buffer with the binary data.
See descriptions of HashAlgorithm to learn of the supported digest
size for each hash.
Do not use this for passwords#
None of these hashes are password hashing algorithms. They were designed to be fast to execute, whereas password hashing should never be fast. You shouldn't use this function for computing password hashes that will be stored, or for deriving keys from passwords.
| Name | Type | Default | Description |
|---|---|---|---|
input | buffer | buffer with binary data to compute hash for | |
algorithm | HashAlgorithm | HashAlgorithm cryptographic hash function |
Returns
buffer—bufferwith the binary data of the hash
ComputeStringHash(input: string, algorithm: HashAlgorithm): string#
Safe
Uses a cryptographic hash function to compute a hash of the input string. Returns a new string with the binary data.
See descriptions of HashAlgorithm to learn of the supported digest
size for each hash.
Do not use this for passwords#
None of these hashes are password hashing algorithms. They were designed to be fast to execute, whereas password hashing should never be fast. You shouldn't use this function for computing password hashes that will be stored, or for deriving keys from passwords.
| Name | Type | Default | Description |
|---|---|---|---|
input | string | string to compute the hash for | |
algorithm | HashAlgorithm | HashAlgorithm cryptographic hash function |
Returns
string— String with the binary data of the hash
DecompressBuffer(input: buffer, algorithm: CompressionAlgorithm): buffer#
Safe
Decompresses the binary data stored in a buffer using the
specified compression algorithm.
Decompression might throw an error if the compressed data doesn't contain expected decompressed size, if it is larger than 1GB or if it is invalid.
It is recommended to use EncodingService.GetDecompressedBufferSize
to find out the decompressed data size before attempting to decompress.
This is very important if the input buffer contents are outside of your
control (for example, from a client RemoteEvent)
| Name | Type | Default | Description |
|---|---|---|---|
input | buffer | buffer with compressed binary data | |
algorithm | CompressionAlgorithm | CompressionAlgorithm to use for decompression |
Returns
buffer—bufferwith the decompressed binary data
GetDecompressedBufferSize(input: buffer, algorithm: CompressionAlgorithm): int?#
Safe
Reports the size of the decompressed data stored in a compressed
buffer. If the compressed data doesn't have a size or the size
is corrupted or invalid (larger than 1GB), function returns nil. When a
nil is returned, attempting to use
EncodingService.DecompressBuffer on this buffer will
throw an error.
| Name | Type | Default | Description |
|---|---|---|---|
input | buffer | buffer with compressed binary data | |
algorithm | CompressionAlgorithm | CompressionAlgorithm used to compress it |
Returns
int?— Integer size of the decompressed data or 'nil'
Inherited members#
Inherited from Instance 58
Properties (10)
Archivable, archivable, Capabilities, IsInSandbox, Name, Parent, PredictionMode, RobloxLocked, Sandboxed, UniqueId
Methods (39)
AddTag, children, ClearAllChildren, Clone, clone, Destroy, destroy, FindFirstAncestor, FindFirstAncestorOfClass, FindFirstAncestorWhichIsA, FindFirstChild, findFirstChild, FindFirstChildOfClass, FindFirstChildWhichIsA, FindFirstDescendant, GetActor, GetAttribute, GetAttributeChangedSignal, GetAttributes, GetChildren, getChildren, GetDebugId, GetDescendants, GetFullName, GetStyled, GetStyledPropertyChangedSignal, GetTags, HasTag, IsAncestorOf, IsDescendantOf, isDescendantOf, IsPropertyModified, QueryDescendants, Remove, remove, RemoveTag, ResetPropertyToDefault, SetAttribute, WaitForChild