{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ... {"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...Elliptic Curve Cryptography (ECC) is based on the algebraic structure of elliptic curves over finite fields. The use of elliptic curves in cryptography was independently suggested by Neal Koblitz and Victor Miller in 1985.{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ... module Data.Curve.Weierstrass.BrainpoolP512T1 (module Data.Curve.Weierstrass, Point (..)-- * BrainpoolP512T1 curve, module Data.Curve.Weierstrass.BrainpoolP512T1) where import Protolude import Data.Field.Galois import GHC.Natural (Natural) import Data.Curve.Weierstrass----- Types----- | BrainpoolP512T1 curve. data BrainpoolP512T1-- | Field of points of BrainpoolP512T1 curve. type Fq = Prime Q ...{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...ブレインプールカーブbrainpoolP512r1またはbrainpoolP512t1とのECC鍵契約を実装したい.使用するシード値（および方法）については不明です。Oct 14, 2020 · This article shows practical examples of how to generate and verify Elliptic curve (ECDSA) signatures using OpenSSL. Step 1. Create private and public EC keys Assuming we want to sign data in test.txt then we Read more… {"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ... {"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ... {"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...Part of PHP Collective. 1. I would like to sign the message "hello" on the browser using SubtleCrypto with ECDSA curve P-384 or P-256, then verify the signature on the server with PHP 8. On the browser, I generate a keypair and use it to sign the message: let key = await crypto.subtle.generateKey ( {name: 'ECDSA', namedCurve: 'P-384'}, true ...Affine BrainpoolP512T1 curve point. type R ... {"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ... {"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ... {"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ... {"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/ECDSA/Curves":{"items":[{"name":"Ed25519.php","path":"phpseclib/Crypt/ECDSA/Curves/Ed25519.php ...{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ... {"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...Node.js crypto.getCurves () Method. The crypto.getCurves () method is an inbuilt application programming interface of the crypto module which is used to display an array with the names of all the supported elliptic curves.Index of /api/trending/vendor/phpseclib/phpseclib/phpseclib/Crypt/EC/Curves. Name Last modified Size Description : Parent Directory - Curve448.php: 2023-03-05 12:13{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ... Oct 3, 2021 · There are many elliptic-curves to choose from, some are safer than others see SafeCurves: choosing safe curves for elliptic-curve cryptography. But the CA/Browser Forum also limits the elliptic-curve choices. NIST P-256 (secp256r1) and NIST P-384 (secp384r1) are not the safest NIST P-521 (secp521r1) isn't shown in the list, but there are worse ones. I personally choose x448, x25519, secp521r1 ... {"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ... {"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ... {"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ... ECC keys come in pairs, one private and one public key. The mathematical parameters of these keys depends upon the specific ECC curve. For the NIST curves (secp256r1, secp384r1, secp521r1), Koblitz curves (secp160k1, secp192k1, secp224k1, secp256k1), and Brainpool curves, the public key consists of two parameters, Rx and Ry; the private key consists of only one parameter value, K. {"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ... The "P256t1" of the "brainpoolP256t1" name indicates: P Field type = Prime field 256 Key size = 256 t Curve type = Twisted curve 1 Cofactor = 1. "brainpoolP256t1" is a twist to "brainpoolP256r1" Their domain parameters (p, a, b, G, n, h) are related as shown below:{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ... The "P256t1" of the "brainpoolP256t1" name indicates: P Field type = Prime field 256 Key size = 256 t Curve type = Twisted curve 1 Cofactor = 1. "brainpoolP256t1" is a twist to "brainpoolP256r1" Their domain parameters (p, a, b, G, n, h) are related as shown below:module Data.Curve.Weierstrass.BrainpoolP512T1 (module Data.Curve.Weierstrass, Point (..)-- * BrainpoolP512T1 curve, module Data.Curve.Weierstrass.BrainpoolP512T1) where import Protolude import Data.Field.Galois import GHC.Natural (Natural) import Data.Curve.Weierstrass----- Types----- | BrainpoolP512T1 curve. data BrainpoolP512T1-- | Field of points of BrainpoolP512T1 curve. type Fq = Prime Q ... {"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...Download php-phpseclib3_3.0.13-1_all.deb for Ubuntu 22.04 LTS from Ubuntu Universe repository.{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...{"payload":{"allShortcutsEnabled":false,"fileTree":{"src/Data/Curve/Weierstrass":{"items":[{"name":"ANSSIFRP256V1.hs","path":"src/Data/Curve/Weierstrass/ANSSIFRP256V1 ...{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ... {"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ... Converter for elliptic curves public and priveta keys from simple binary to PEM and DER formats.. Latest version: 1.0.0, last published: 9 months ago. Start using @didkovsky/keys-converter in your project by running `npm i @didkovsky/keys-converter`. There are no other projects in the npm registry using @didkovsky/keys-converter. {"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ... {"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ... PrivateKey interface. PublicKey. PublicKey interface. StreamCipher. Base Class for all stream cipher classes. SymmetricKey. Base Class for all \phpseclib3\Crypt* cipher classes. Fingerprint. Fingerprint Trait for Private Keys.{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ... {"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ... {"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/ECDSA/Curves":{"items":[{"name":"Ed25519.php","path":"phpseclib/Crypt/ECDSA/Curves/Ed25519.php ...module Data.Curve.Weierstrass.BrainpoolP512T1 ( module Data.Curve.Weierstrass , Point(..) -- * BrainpoolP512T1 curve , module Data.Curve.Weierstrass.BrainpoolP512T1 ...{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...static member brainpoolP512t1 : System.Security.Cryptography.ECCurve Public Shared ReadOnly Property brainpoolP512t1 As ECCurve Property Value.{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ... {"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/ECDSA/Curves":{"items":[{"name":"Ed25519.php","path":"phpseclib/Crypt/ECDSA/Curves/Ed25519.php ...module Data.Curve.Weierstrass.BrainpoolP512T1 (module Data.Curve.Weierstrass, Point (..)-- * BrainpoolP512T1 curve, module Data.Curve.Weierstrass.BrainpoolP512T1) where import Protolude import Data.Field.Galois import GHC.Natural (Natural) import Data.Curve.Weierstrass----- Types----- | BrainpoolP512T1 curve. data BrainpoolP512T1-- | Field of points of BrainpoolP512T1 curve. type Fq = Prime Q ... {"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ... net2ftp is a web-based FTP client written in PHP. Features: - Navigate the FTP server - Upload and download files - Edit files (WYSIWYG and syntax highlighting) - View code with syntax highlighting - Copy, move, delete (also to 2nd FTP server) - Rename and chmod (also recursive) - Zip and unzip files - Install software - Search for words or ...This article shows practical examples of how to generate and verify Elliptic curve (ECDSA) signatures using OpenSSL. Step 1. Create private and public EC keys Assuming we want to sign data in test.txt then we Read more…{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ... See full list on wiki.openssl.org {"payload":{"allShortcutsEnabled":false,"fileTree":{"src/Data/Curve/Weierstrass":{"items":[{"name":"ANSSIFRP256V1.hs","path":"src/Data/Curve/Weierstrass/ANSSIFRP256V1 ... {"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...openssl ecparam -in brainpoolP512t1.pem -text -noout This will correctly display the parameters, even though this version of OpenSSL does not know about this curve. The same is true of key files. So to generate a key with explicit parameters: openssl ecparam -name brainpoolP512t1 -genkey -noout -out brainpoolP512t1-key.pem -param_enc explicit{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...A polymorphic interface for elliptic curve operations - elliptic-curve/BrainpoolP512T1.hs at master · sdiehl/elliptic-curve{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...protected object[] $doubles: Doubles: from Base: protected BigInteger {"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ... {"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...Pure-PHP implementation of AES. AsymmetricKey — Class in namespace phpseclib3\Crypt\Common ... brainpoolP512t1 — Class in namespace phpseclib3\Crypt\EC\Curves{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ... {"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ... {"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ... {"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...module Data.Curve.Weierstrass.BrainpoolP512T1 (module Data.Curve.Weierstrass, Point (..)-- * BrainpoolP512T1 curve, module Data.Curve.Weierstrass.BrainpoolP512T1) where import Protolude import Data.Field.Galois import GHC.Natural (Natural) import Data.Curve.Weierstrass----- Types----- | BrainpoolP512T1 curve. data BrainpoolP512T1-- | Field of points of BrainpoolP512T1 curve. type Fq = Prime Q ...{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...Jul 28, 2022 · Practice. The openssl_get_curve_names () function is an inbuilt function in PHP which is used to curve names in Elliptic curve cryptography. The two most widely standardized or supported curves are prime256v1 (NIST P-256) and secp384r1 (NIST P-384). The curve names usually contain a number which is the number of bits in the binary representation. Aug 1, 2023 · Description ¶. openssl_get_curve_names (): array|false. Gets the list of available curve names for use in Elliptic curve cryptography (ECC) for public/private key operations. The two most widely standardized/supported curves are prime256v1 (NIST P-256) and secp384r1 (NIST P-384). {"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...Part of PHP Collective. 1. I would like to sign the message "hello" on the browser using SubtleCrypto with ECDSA curve P-384 or P-256, then verify the signature on the server with PHP 8. On the browser, I generate a keypair and use it to sign the message: let key = await crypto.subtle.generateKey ( {name: 'ECDSA', namedCurve: 'P-384'}, true ...Aug 1, 2023 · Description ¶. openssl_get_curve_names (): array|false. Gets the list of available curve names for use in Elliptic curve cryptography (ECC) for public/private key operations. The two most widely standardized/supported curves are prime256v1 (NIST P-256) and secp384r1 (NIST P-384).
{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php .... Wepercent27ll always have summer wikipedia
openssl ecparam -in brainpoolP512t1.pem -text -noout This will correctly display the parameters, even though this version of OpenSSL does not know about this curve. The same is true of key files. So to generate a key with explicit parameters: openssl ecparam -name brainpoolP512t1 -genkey -noout -out brainpoolP512t1-key.pem -param_enc explicit{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...openssl ecparam -in brainpoolP512t1.pem -text -noout This will correctly display the parameters, even though this version of OpenSSL does not know about this curve. The same is true of key files. So to generate a key with explicit parameters: openssl ecparam -name brainpoolP512t1 -genkey -noout -out brainpoolP512t1-key.pem -param_enc explicitopenssl s_client -cert eccert.pem -key eckey.pem -connect 127.0.0.1:4000 -named_curve brainpoolP512t1 Error with command: "-named_curve brainpoolP512t1" According to the man page for ecparam , The default value is named_curve. , so it doesn't seem like anything needs to be done there.{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/ECDSA/Curves":{"items":[{"name":"Ed25519.php","path":"phpseclib/Crypt/ECDSA/Curves/Ed25519.php ...{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ... The "P256t1" of the "brainpoolP256t1" name indicates: P Field type = Prime field 256 Key size = 256 t Curve type = Twisted curve 1 Cofactor = 1. "brainpoolP256t1" is a twist to "brainpoolP256r1" Their domain parameters (p, a, b, G, n, h) are related as shown below:{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/ECDSA/Curves":{"items":[{"name":"Ed25519.php","path":"phpseclib/Crypt/ECDSA/Curves/Ed25519.php ...{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/EC/Curves":{"items":[{"name":"Curve25519.php","path":"phpseclib/Crypt/EC/Curves/Curve25519.php ...{"payload":{"allShortcutsEnabled":false,"fileTree":{"phpseclib/Crypt/ECDSA/Curves":{"items":[{"name":"Ed25519.php","path":"phpseclib/Crypt/ECDSA/Curves/Ed25519.php ...The "P256t1" of the "brainpoolP256t1" name indicates: P Field type = Prime field 256 Key size = 256 t Curve type = Twisted curve 1 Cofactor = 1. "brainpoolP256t1" is a twist to "brainpoolP256r1" Their domain parameters (p, a, b, G, n, h) are related as shown below:.