Decrypted packet padding removal

An information processing method for decoding a packet that is encrypted in accordance with Transport Layer Security (TLS) protocols and in which a padding portion has a variable length, the information processing method comprising:

• acquiring, by an acquisition unit, an encrypted packet on a unit data basis;
• decoding, by a decoding unit, the encrypted packet on the unit data basis;
• outputting, by an output unit, decoded data obtained through the decoding performed by the decoding unit to an external device in accordance with an order in which the decoding is performed by the decoding unit;
• and
• restricting, by a restricting unit, output to be performed by the output unit in a case where a padding pattern is detected from the decoded data obtained through the decoding performed by the decoding unit and keep restricting the output to be performed by the output unit until a pattern different from the padding pattern is detected from the decoded data obtained through the decoding performed by the decoding unit.

A non-transitory storage medium storing a program causing an information processing apparatus for decoding a packet that is encrypted in accordance with Transport Layer Security (TLS) protocols and in which a padding portion has a variable length to execute an information processing method, the information processing method comprising:

• acquiring, by an acquisition unit, an encrypted packet on a unit data basis;
• decoding, by a decoding unit, the encrypted packet on the unit data basis;
• outputting, by an output unit, decoded data obtained through the decoding performed by the decoding unit to an external device in accordance with an order in which the decoding is performed by the decoding unit;
• and
• restricting, by a restricting unit, output to be performed by the output unit in a case where a padding pattern is detected from the decoded data obtained through the decoding performed by the decoding unit and keep restricting the output to be performed by the output unit until a pattern different from the padding pattern is detected from the decoded data obtained through the decoding performed by the decoding unit.

An information processing apparatus for decoding a packet that is encrypted in accordance with Transport Layer Security (TLS) protocols and in which a padding portion has a variable length, the information processing apparatus comprising:

• at least one circuit configured to function as:
• an acquisition unit configured to acquire an encrypted packet on a unit data basis;
• a decoding unit configured to decode the encrypted packet on the unit data basis;
• an output unit configured to output decoded data obtained through the decoding performed by the decoding unit to an external device in accordance with an order in which the decoding is performed by the decoding unit;
• and
• a restricting unit configured to restrict output to be performed by the output unit in a case where a first padding pattern is detected from the decoded data obtained through the decoding performed by the decoding unit, and to keep restricting the output to be performed by the output unit until a pattern different from a second padding pattern is detected from the decoded data obtained through the decoding performed by the decoding unit.

An information processing method for decoding a packet that is encrypted in accordance with Transport Layer Security (TLS) protocols and in which a padding portion has a variable length, the information processing method comprising:

• acquiring, by an acquisition unit, an encrypted packet on a unit data basis;
• decoding, by a decoding unit, the encrypted packet on the unit data basis;
• outputting, by an output unit, decoded data obtained through the decoding performed by the decoding unit to an external device in accordance with an order in which the decoding is performed by the decoding unit;
• and
• restricting, by a restricting unit, output to be performed by the output unit in a case where a first padding pattern is detected from the decoded data obtained through the decoding performed by the decoding unit and keep restricting the output to be performed by the output unit until a pattern different from a second padding pattern is detected from the decoded data obtained through the decoding performed by the decoding unit.

A non-transitory storage medium storing a program causing an information processing apparatus for decoding a packet that is encrypted in accordance with Transport Layer Security (TLS) protocols and in which a padding portion has a variable length to execute an information processing method, the information processing method comprising:

• acquiring, by an acquisition unit, an encrypted packet on a unit data basis;
• decoding, by a decoding unit, the encrypted packet on the unit data basis;
• outputting, by an output unit, decoded data obtained through the decoding performed by the decoding unit to an external device in accordance with an order in which the decoding is performed by the decoding unit;
• and
• restricting, by a restricting unit, output to be performed by the output unit in a case where a first padding pattern is detected from the decoded data obtained through the decoding performed by the decoding unit and keep restricting the output to be performed by the output unit until a pattern different from a second padding pattern is detected from the decoded data obtained through the decoding performed by the decoding unit.