Predefined Constants

Table of Contents

• Purpose checking flags
• Padding flags for asymmetric encryption
• Key types
• PKCS7 Flags/Constants
• CMS Flags/Constants
• Signature Algorithms
• Ciphers
• Version constants
• Server Name Indication constants
• Other Constants

The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.

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