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1.2.840.113549.1.1.1

rsaEncryption

rsaEncryption is the OID of an RSA public key — used for keys that sign as well as keys that encrypt.

1.2.840.113549.1.1.1 identifies rsaEncryption, a public key type. DER: 06092a864886f70d010101.

Despite its name, rsaEncryption (PKCS #1) identifies almost every RSA key in X.509, including keys used only for signatures. Certificates whose key is restricted to RSASSA-PSS use id-RSASSA-PSS (1.2.840.113549.1.1.10) instead, which some software still fails to parse.

Dotted notation
1.2.840.113549.1.1.1
DER encoding
06092a864886f70d010101
Category
a public key type
Also known as
RSA public key, RSA
OpenSSL long name
rsaEncryption
Listed by
the ecdsa.com catalog

Where it is defined

OIDs