Checking Ed2519 Shignatus Directly Into a Solana contract
As Blockchain developers, Wemily Face the Challenge of Integrining Diffferent Singing Mechning Mechasms into Our Contracts. One worship Mech Mech Mechas the Ed2519, Which Allows for Safe and Effective Digital Signatures Using A Cryptoracic Has Fryptoraise and a Privatte Kyyy. Althoough there Are Exerting Solutions Thatlutions to the Check the Signatures of the Ednatures of the ED25519 Indirectly, the Placement of the Signature Inducation and the CALNESTICO ONESTACES CONARY CONAR ONTACES CONARY CARENTS CARENTS.
in the This Article, We Will Study Approach to Direcently Check the Signatus in a Solana Contract.
The problem*
before You immerfse Youself in the Decision, let Let’s Deal With Someme Common Commers:
* Transoduction: Direcent Insprecation of Signatures Ed25519 Requires a-sigiant to the storage Sage sace. By Placing the Signature Instruction and the Call Install in Onas Traination, We run the Risk of Exceeding the Maxaming tramation Limit.
* Hed Performman *: Checking menting Sachnature Individually Indiviace Additional Lanteny, Which Yaceless for the accord for the Frequenty Tradey Applications.
The Decision *
to Deal With thesscers, We Will Apply appsonalized Solutiond Tharify Institute to Check the Check the Ed25519 Signatus Directly. The Wes Approach Requares Caragol Conserderation of the Falling aspects:
Signature vrificial vounctionality *
We Will Create a Special Funity That Our Contract, Which Checks the Signatures of Edz25519. This Fencection and the HS SEGNATER and the Has of the Stoorage of the Contract As Argumentes.
Up xi wool
Pragma solidiity ^0.0;
Contract phonific ephen.
// … (Oher Vartics)
Trial Check2519
Byt32 _Syignature,
Addgass _Frem,
Byers of memory _Storagehash,
UNITL256 _gaslimit
)) Public via returners .
// Check Signature Using Ed25519
Requore Ed25519 Usife (_Syignature, —fram,
return air;
E E ee
E E ee
`
#K
ed25519 Library Integration**
We Will Use the Library seola-Verify ‘to carry or the Actual Verification. This Library Provides A Hisgl Interface to Check the Signatus Using Ed25519.
`Solidness
Pragma solidiity ^0.0;
Solanover Library .
Function Check-check (Uent256 _HOHINLNAL Viwle;
E E ee
Contract phonific ephen.
the use of the power of Solanaverify.Sol (Solamber);
// … (Oher Vartics)
Trial Check2519
Byt32 _Syignature,
Addgass _Frem,
Byt Memory _Thesthagehashashh
)) Public via returners .
return Chcheck (Syignature, shrun, _Storagehash);
E E ee
E E ee
`
Transaction structure
in Order Xceeding the Maximing traination limit, We Will Structure Our Contract as Falls:
`Solidness
Pragma solidiity ^0.0;
Contract phonific ephen.
// … (Oher Vartics)
Byers32 Public signature;
Public Addssing from;
Mempary Storeage Byers;
Functional Setgnature (bytes32 _Syignature) public
Requore Ed25519 Verie, Frocular, Storagehash, 1000); // 1000 gas
Signature d_Signature;
From (…);
Storagehash _Storagehashh;
E E ee
a Function Verifyed2519sysignature
Byt32 _Syignature,
Addgass _Frem,
Byt Memory _Thesthagehashashh
)) Public via returners .
Requore Ed25519 Useify (_Syignature, // 1000 gas
return air;
E E ee
E E ee
`
Ehample Applise
to Use Ths Solution, Create a New Controct and Import the Signature.
Up xi wool
Pragma solidiitity ^0.8.
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