Knowledge Notes | Hash Functions
① With a secure hash function, it is virtually impossible to recover the original input from its hash value, or to find two different inputs that produce the same hash value.
② A hash function can turn data of any length into a fixed-length output. This output is called a hash value, or digest.
③ After downloading wallet software, you may want to check the official SHA-256 checksum to make sure the installation package has not been tampered with.
$BTC 80200.2 (-0.73%)
① With a secure hash function, it is virtually impossible to recover the original input from its hash value, or to find two different inputs that produce the same hash value.
② A hash function can turn data of any length into a fixed-length output. This output is called a hash value, or digest.
③ After downloading wallet software, you may want to check the official SHA-256 checksum to make sure the installation package has not been tampered with.
$BTC 80200.2 (-0.73%)