OPENSSL-EC(1ssl) OpenSSL OPENSSL-EC(1ssl) openssl-ec - EC openssl ec [-help] [-inform DER|PEM|P12|ENGINE] [-outform DER|PEM] [-in filename|uri] [-passin arg] [-out filename] [-passout arg] [-des] [-des3] [-idea] [-text] [-noout] [-param_out] [-pubin] [-pubout] [-conv_form arg] [-param_enc arg] [-no_public] [-check] [-engine id] [-provider name] [-provider-path path] [-provparam [name:]key=value] [-propquery propq] openssl-ec(1) EC. . OpenSSL 'SEC 1: ' (http://www.secg.org/). EC OpenSSL PKCS#8 openssl-pkcs8(1). -help . -inform DER|PEM|P12|ENGINE . openssl-format-options(1) . -outform DER|PEM PEM. openssl-format-options(1) . SEC1 PKCS#8. SubjectPublicKeyInfo IETF RFC 3280. -in _|_ . . -out _ . . . -passin -passout . arg openssl-passphrase-options(1). -des|-des3|-idea DES triple DES IDEA OpenSSL . . . . PEM. -text . -noout . -param_out . -pubin . . . -pubout . . . -conv_form . : compressed uncompressed ( ) hybrid. X9.62. compressed OPENSSL_EC_BIN_PT_COMP . -param_enc . : named_curve ec OID explicit ec ( RFC 3279 EC). named_curve. : implicitlyCA RFC 3279 OpenSSL. -no_public . -check EC . -engine id " " openssl(1). . -provider -provider-path -provparam [:]= -propquery propq " " openssl(1) provider(7) property(7). openssl-pkey(1) . openssl-pkey(1) . DES : openssl ec -in key.pem -des3 -out keyout.pem PEM DER: openssl ec -in key.pem -outform DER -out keyout.der : openssl ec -in key.pem -text -noout : openssl ec -in key.pem -pubout -out pubkey.pem explicit: openssl ec -in key.pem -param_enc explicit -out keyout.pem compressed: openssl ec -in key.pem -conv_form compressed -out keyout.pem openssl(1), openssl-pkey(1), openssl-ecparam(1), openssl-dsa(1), openssl-rsa(1) -engine OpenSSL 3.0. -conv_form -no_public OpenSSL 3.0. 2003-2023 OpenSSL. . Apache 2.0 ( ""). . LICENSE . 3 . . : . 3.6.2 7 2026 OPENSSL-EC(1ssl)