KeyUsageEntry

Inheritance and contracts

Parent : PDF\Specification\SchemaEntry

Definition in the specification

Table 235 · Entries in a certificate seed value dictionary
ISO 32000-1:2008, §12.7.4.5 · PDF page 458 ↗

/KeyUsage array of ASCII strings

(Optional; PDF 1.7) An array of ASCII strings, where each string specifies an acceptable key-usage extension that shall be present in the signing certificate. Multiple strings specify a range of acceptable key- usage extensions. The key-usage extension is described in RFC 3280. Each character in a string represents a key-usage type, where the order of the characters indicates the key-usage extension it represents. The first through ninth characters in the string, from left to right, represent the required value for the following key-usage extensions: 1 digitalSignature 4 dataEncipherment 7 cRLSign 2 non-Repudiation 5 keyAgreement 8 encipherOnly 3 keyEncipherment 6 keyCertSign 9 decipherOnly Any additional characters shall be ignored. Any missing characters or characters that are not one of the following values, shall be treated as ‘X’. The following character values shall be supported: 0 Corresponding key-usage shall not be set. 1 Corresponding key-usage shall be set. X State of the corresponding key-usage does not matter. EXAMPLE 1 The string values ‘1’ and ‘1XXXXXXXX’ represent settings where the key-usage type digitalSignature is set and the state of all other key-usage types do not matter. The value of the corresponding flag in the Ff entry indicates whether this is a required constraint.

Qualifier: Optional; PDF 1.7

Conditional descriptions remain traceable. A definition alone does not implement a codec, a signature or every format mechanism. Read the coverage.

Construction

Inherited methods

Properties

Constants

'KeyUsage'

'235'

false