o w+f@sddlmZddlmZddlmZmZddlmZm Z ddl m Z m Z m Z mZmZddlmZmZmZmZmZGdddZd Zd Zd Zd Zd S))Math)Point) secp256k1getByOid) getPemContent createPem) hexFromIntparse DerFieldTypeencodeConstructedencodePrimitive)hexFromByteStringbyteStringFromHex intFromHexbase64FromByteStringbyteStringFromBase64c@speZdZddZdddZddZdd Zd d Zed d Z eddZ ee dfddZ ee fddZ dS) PublicKeycCs||_||_dS)Npointcurve)selfrrrJ/var/www/html/venv/lib/python3.10/site-packages/ellipticcurve/publicKey.py__init__ s zPublicKey.__init__FcCsJd|j}t|jj|}t|jj|}||}|r#d|S|S)N0004)rlengthrrxzfilly)rencoded baseLengthxHexyHexstringrrrtoStringszPublicKey.toStringcCs@d|j}|jjddkrtnt}t|jj|}||S)Nr) rrrr_evenTag_oddTagrrr)rr! parityTagr"rrr toCompressedszPublicKey.toCompressedcCs<ttttjtttj|jjttj|jdd}t |S)NT)r ) r r r object_ecdsaPublicKeyOidroid bitStringr%r)r hexadecimalrrrtoDers zPublicKey.toDercCs|}tt|tdS)N)contenttemplate)r0rr _pemTemplate)rderrrrtoPem(szPublicKey.toPemcCst|td}|t|S)N)pemr2)rr3fromDerr)clsr$ publicKeyPemrrrfromPem,s zPublicKey.fromPemcCsPt|}t|d\}}|\}}|tkrtdjt|dt|}|j||dS)Nr&zgThe Public Key Object Identifier (OID) should be {ecdsaPublicKeyOid}, but {actualOid} was found instead)ecdsaPublicKeyOid actualOid)r$r)r r r, Exceptionformatr fromString)r8r$r/ curveData pointString publicKeyOidcurveOidrrrrr71szPublicKey.fromDerTc Csd|}t|d|kr|dddkr|dd}|d|}||d}tt|t|d}t||d}|s<|S|rDtd||sVtdj|j |j |j dt j ||j|j|j|jd sstd j|j |j |j d|S) Nrr)rrrzPublic Key point is at infinityz-Point ({x},{y}) is not valid for curve {name})rrname)pnNAPz-Point ({x},{y}) * {name}.N is not at infinity)rlenrrr isAtInfinityr=containsr>rrrErmultiplyrHrIrJ) r8r$r validatePointr!xsysrF publicKeyrrrr?>s&        zPublicKey.fromStringcCsZ|dd|dd}}|ttfvrtdt|}|j||tkd}|t|||dS)Nrz,Compressed string should start with 02 or 03)isEvenr)r'r(r=rrr)r8r$rr)r"rrrrrfromCompressedVs  zPublicKey.fromCompressedN)F)__name__ __module__ __qualname__rr%r*r0r5 classmethodr:r7rr?rTrrrrr s      r0203)rriHi='rrz? -----BEGIN PUBLIC KEY----- {content} -----END PUBLIC KEY----- N)mathrrrrrr utils.pemrr utils.derrr r r r utils.binaryr rrrrrr'r(r,r3rrrrs W