Base58 Decode

Decodes a character string or raw vector from base58 encoding with checksum.

Usage

base58dec(x, convert = TRUE)

Arguments

x

a character string or raw vector containing base58 encoded data.

convert

logical TRUE to convert back to a character string, FALSE to convert back to a raw vector or NA to decode and then unserialize back to the original object.

Value

A character string, raw vector, or other object depending on the value of convert.

Details

The 4-byte checksum suffix is verified using double SHA-256 and an error is raised if validation fails. Note: does not expect a version byte prefix (unlike Bitcoin Base58Check).

The value of convert should be set to TRUE, FALSE or NA to be the reverse of the 3 encoding operations (for strings, raw vectors and arbitrary objects), in order to return the original object.

References

This implementation is based on 'libbase58' by Luke Dashjr under the MIT licence at https://github.com/luke-jr/libbase58.

See also

base58enc()

Examples

base58dec(base58enc("secret base"))
#> [1] "secret base"
base58dec(base58enc(as.raw(c(1L, 2L, 4L))), convert = FALSE)
#> [1] 01 02 04
base58dec(base58enc(data.frame()), convert = NA)
#> data frame with 0 columns and 0 rows