Tabla de Contenidos

Certificados

Extensiones más comunes para los certificados

extensión Nombre Descripción
.pem Privacy Enhanced Mail (PEM) Base64 encoded DER certificate
.cer Security CERtificate
.crt
.der
.p7b Estructura sin datos, sólo certificados o CRLs.
.p7c
PKCS#7
.p12 PKCS#12 Puede contener el certificado público y la llave privada
.pfx personal information exchange (PFX) formato usado antes del PKCS#12

Filetype Format name Description .pem Privacy Enhanced Mail (PEM) Base64 encoded DER certificate, that uses: “—–BEGIN CERTIFICATE—–” and “—–END CERTIFICATE—–” .cer .crt .der Security CERtificate Usually binary DER form, but Base64-encoded certificates are common too. .p7b .p7c Structure without data, just certificates or CRLs.

PKCS#7 is a standard for signing or encrypting (officially called “enveloping”) data. .p12 PKCS#12 May contain certificate(s) (public) and private keys (password protected). .pfx personal information exchange (PFX) Older format. Came before PKCS#12. Usually today data is in PKCS#12 format.