Stack Alternate Community Stack Alternate community consists of 181 Q&A communities together with Stack Overflow , the biggest, most trusted on-line group for builders to study, share their data, and construct their careers.Bitcoin Stack Alternate is a query and reply web site for Bitcoin crypto-currency fanatics.It solely takes a minute to enroll.Signal as much as be a part of this group Anyone can ask a query Anyone can reply The perfect solutions are voted up and rise to the highest Requested Seen 404 instances Can anybody inform me how I can get the prolonged public key from an prolonged non-public key in python.I do know that I must get the general public key from the non-public key and that the general public key + chain key = prolonged public key.I have already got the general public key in a number of types however I do not know which one to make use of.
Prolonged Non-public Key: 961901f50868df03db40e0a29d40092b3fc26f47a1c20540d1440be1cd70edbef9c82ec85c4f90a24a1f7a4f1de97ddf762bcb20142b12e9b6c3e348e5519b74 Non-public key: 961901f50868df03db40e0a29d40092b3fc26f47a1c20540d1440be1cd70edbe Chain Code: f9c82ec85c4f90a24a1f7a4f1de97ddf762bcb20142b12e9b6c3e348e5519b74 PREPENDED: 80961901F50868DF03DB40E0A29D40092B3FC26F47A1C20540D1440BE1CD70EDBE PRIV_UNCOMP+CHECKSUM: 80961901F50868DF03DB40E0A29D40092B3FC26F47A1C20540D1440BE1CD70EDBE223FDFAE Private_key_WIF_uncompressed_Base58: 5JxPdEGBsaP14hBpr3swh2GZeXctQdLn9ZvjyFEj6diN742em4R PRIV_COMP+CHECKSUM: 80961901F50868DF03DB40E0A29D40092B3FC26F47A1C20540D1440BE1CD70EDBE0151EA0003 Private_key_WIF_compressed_Base58: L2FUruY2zEL7HJNnBVhrPebh6e9PuHQJGpLCfFqaos3a9eeosKVL (‘5JxPdEGBsaP14hBpr3swh2GZeXctQdLn9ZvjyFEj6diN742em4R’, ‘L2FUruY2zEL7HJNnBVhrPebh6e9PuHQJGpLCfFqaos3a9eeosKVL’) Non-public key hex string: 961901F50868DF03DB40E0A29D40092B3FC26F47A1C20540D1440BE1CD70EDBE Non-public key bytes: b’x96x19x01xf5x08hxdfx03xdb@xe0xa2x9d@t+?xc2oGxa1xc2x05@xd1Dx0bxe1xcdpxedxbe’ Verifying key, x and y factors (bytes): b’E.1xc8Zx02xf6x1e$x9dxf1xcfxc3x10x8ffx06x14UxceL3xf8xabOxbfx1crxe4xf6xf1x1cmxb9xc3x16xed6xbbx0cxe4xeaQx1b^Wxdex8dxd5xacx822Zxeaxcb#x82xf1xdaxb8x12xfdx8fxa9′ Uncompressed non-public key (hex): 04452E31C85A02F61E249DF1CFC3108F66061455CE4C33F8AB4FBF1C72E4F6F11C6DB9C316ED36BB0CE4EA511B5E57DE8DD5AC82325AEACB2382F1DAB812FD8FA9 Compressed non-public key in (hex): 02452E31C85A02F61E249DF1CFC3108F66061455CE4C33F8AB4FBF1C72E4F6F11C Public compressed key (hex): 13w1yEAhhMGk6E5UU2wGQyy7pP14K1q2tg Prolonged Public Key: ? Thanks! We signify an prolonged non-public key as (okay, c), with okay the conventional non-public key, and c the chain code.An prolonged public secret is represented as (Ok, c), with Ok = level(okay) and c the chain code.
level(p): returns the coordinate pair ensuing from EC level multiplication (repeated utility of the EC group operation) of the secp256k1 base level with the integer p.ser256(p): serializes the integer p as a 32-byte sequence, most vital byte first.
serP(P): serializes the coordinate pair P = (x,y) as a byte sequence utilizing SEC1’s compressed type: (0x02 or 0x03) || ser256(x), the place the header byte depends upon the parity of the omitted y coordinate.Prolonged private and non-private keys are serialized as follows: – 4 byte: model bytes (mainnet: 0x0488B21E public, 0x0488ADE4 non-public; testnet: 0x043587CF public, 0x04358394 non-public) – 1 byte: depth: 0x00 for grasp nodes, 0x01 for level-1 derived keys, ….
– 4 bytes: the fingerprint of the mother or father’s key (0x if grasp key) – 4 bytes: little one quantity.That is ser32(i) for i in xi = xpar/i, with xi the important thing being serialized.
(0x if grasp key) – 32 bytes: the chain code – 33 bytes: the general public key or non-public key information (serP(Ok) for public keys, 0x00 || ser256(okay) for personal keys) This 78 byte construction might be encoded like different Bitcoin information in Base58, by first including 32 checksum bits (derived from the double SHA-256 checksum), after which changing to the Base58 illustration.This leads to a Base58-encoded string of as much as 112 characters.Thus the prolonged public key (xpub) might be derived from the prolonged non-public key (xprv) as follows: – Convert the xprv from Base58 to bytes and extract the non-public key from the final 33 bytes (ignoring the checksum).- Calculate the general public key from the non-public key as per level(p).- Serialize the end result: – 4 bytes: 0x0488B21E (mainnet) or 0x043587CF (testnet) – 41 bytes: depth, mother or father fingerprint, little one quantity and chain code are the identical as within the xprv – 33 bytes: public key serialized utilizing serP(Ok) – Add the 4-byte checksum and convert to Base58..
