/**
 * Extracts public keys from PEM certificate content
 * @param pemData - The PEM certificate data to parse
 * @returns Array of base64-encoded public key strings
 */
export declare function extractPemCertificateKeys(pemContent: string): string[];
/**
 * Checks if PEM certificate content can be parsed as X509Certificate
 * @param pemCert - The PEM certificate
 * @returns true if all certificates in the PEM content can be parsed without error
 */
export declare function canParseAsX509Certificate(pemCert: string): boolean;
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