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encodedParts[i - 1].length : 0;\n sequence.set(encodedParts[i], previousLength);\n }\n\n const full_encoded = encodeBuffer(sequence, 0x30); // SEQUENCE\n return Buffer.from(full_encoded).toString(\"base64\");\n}\n\n/**\n * Fill in the PEM with 64 character lines as per RFC:\n *\n * \"To represent the encapsulated text of a PEM message, the encoding\n * function's output is delimited into text lines (using local\n * conventions), with each line except the last containing exactly 64\n * printable characters and the final line containing 64 or fewer\n * printable characters.\"\n */\nfunction formatBase64Sequence(base64Sequence: string): string {\n const lines = base64Sequence.match(/.{1,64}/g);\n let result = \"\";\n if (lines) {\n for (const line of lines) {\n result += line;\n result += \"\\n\";\n }\n } else {\n throw new Error(\"Could not create correct PEM\");\n }\n return result;\n}\n\n/**\n * @internal\n * Encode a JWK to PEM format. 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