Struct solana_sdk::pubkey::Pubkey[][src]

#[repr(transparent)]
pub struct Pubkey(_);

Implementations

👎 Deprecated since 1.3.9:

Please use ‘Pubkey::new_unique’ instead

unique Pubkey for tests and benchmarks.

Create a program address

Program addresses are account keys that only the program has the authority to sign. The address is of the same form as a Safecoin Pubkey, except they are ensured to not be on the ed25519 curve and thus have no associated private key. When performing cross-program invocations the program can “sign” for the key by calling invoke_signed and passing the same seeds used to generate the address. The runtime will check that indeed the program associated with this address is the caller and thus authorized to be the signer.

Because the program address cannot lie on the ed25519 curve there may be seed and program id combinations that are invalid. In these cases an extra seed (bump seed) can be calculated that results in a point off the curve. Use find_program_address to calculate that bump seed.

Warning: Because of the way the seeds are hashed there is a potential for program address collisions for the same program id. The seeds are hashed sequentially which means that seeds {“abcdef”}, {“abc”, “def”}, and {“ab”, “cd”, “ef”} will all result in the same program address given the same program id. Since the change of collision is local to a given program id the developer of that program must take care to choose seeds that do not collide with themselves.

Find a valid program address and its corresponding bump seed which must be passed as an additional seed when calling invoke_signed.

Panics in the very unlikely event that the additional seed could not be found.

The processes of finding a valid program address is by trial and error, and even though it is deterministic given a set of inputs it can take a variable amount of time to succeed across different inputs. This means that when called from an on-chain program it may incur a variable amount of the program’s compute budget. Programs that are meant to be very performant may not want to use this function because it could take a considerable amount of time. Also, programs that area already at risk of exceeding their compute budget should also call this with care since there is a chance that the program’s budget may be occasionally exceeded.

Find a valid program address and its corresponding bump seed which must be passed as an additional seed when calling invoke_signed.

The processes of finding a valid program address is by trial and error, and even though it is deterministic given a set of inputs it can take a variable amount of time to succeed across different inputs. This means that when called from an on-chain program it may incur a variable amount of the program’s compute budget. Programs that are meant to be very performant may not want to use this function because it could take a considerable amount of time. Also, programs that area already at risk of exceeding their compute budget should also call this with care since there is a chance that the program’s budget may be occasionally exceeded.

Log a Pubkey from a program

Trait Implementations

Performs the conversion.

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The associated error which can be returned from parsing.

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