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Version: Helium

IFHERC20

IFHERC20​

Interface of the ERC-20 standard as defined in the ERC.

TransferEncrypted​

event TransferEncrypted(address from, address to)

_Emitted when value tokens are moved from one account (from) to another (to).

Note that value may be zero._

ApprovalEncrypted​

event ApprovalEncrypted(address owner, address spender)

Emitted when the allowance of a spender for an owner is set by a call to approveEncrypted. value is the new allowance.

balanceOfEncrypted​

function balanceOfEncrypted(address account, struct Permission auth) external view returns (bytes)

Returns the value of tokens owned by account, sealed and encrypted for the caller.

transferEncrypted​

function transferEncrypted(address to, struct inEuint32 value) external returns (euint32)

_Moves a value amount of tokens from the caller's account to to.

Returns a boolean value indicating whether the operation succeeded.

Emits a TransferEncrypted event._

transferEncrypted​

function transferEncrypted(address to, euint32 value) external returns (euint32)

allowanceEncrypted​

function allowanceEncrypted(address spender, struct Permission permission) external view returns (bytes)

_Returns the remaining number of tokens that spender will be allowed to spend on behalf of owner through transferFromEncrypted. This is zero by default.

This value changes when approveEncrypted or transferFromEncrypted are called._

approveEncrypted​

function approveEncrypted(address spender, struct inEuint32 value) external returns (bool)

_Sets a value amount of tokens as the allowance of spender over the caller's tokens.

Returns a boolean value indicating whether the operation succeeded.

IMPORTANT: Beware that changing an allowance with this method brings the risk that someone may use both the old and the new allowance by unfortunate transaction ordering. One possible solution to mitigate this race condition is to first reduce the spender's allowance to 0 and set the desired value afterwards: https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729

Emits an ApprovalEncrypted event._

transferFromEncrypted​

function transferFromEncrypted(address from, address to, struct inEuint32 value) external returns (euint32)

_Moves a value amount of tokens from from to to using the allowance mechanism. value is then deducted from the caller's allowance.

Returns a boolean value indicating whether the operation succeeded.

Emits a TransferEncrypted event._

transferFromEncrypted​

function transferFromEncrypted(address from, address to, euint32 value) external returns (euint32)