A computer-implemented method, comprising: receiving, by a secure processing device from a requesting device, a request to perform an operation, the request being received in a request message comprising an encrypted record and a first dynamic value, the encrypted record comprising a set of one or more entries corresponding to one or more previously performed operations associated with a user of the requesting device; authorizing, by the secure processing device, the request using the encrypted record, a first cryptographic key (402, 604) derived from a unique key associated with an authorizing entity, and the first dynamic value, said authorizing comprising: obtaining a second cryptographic key derived from the unique key associated with the authorizing entity, wherein the second cryptographic key is obtained from the request message; generating a third cryptographic key from the first cryptographic key and the second cryptographic key; generating a decrypted record from the encrypted record utilizing the third cryptographic key, wherein authorizing the request is based at least in part on the decrypted record; aggregating a first set of entries of the decrypted record to generate a first value; and aggregating a second set of entries of the decrypted record to generate a second value, wherein the request is authorized based at least in part on the first value and the second value; performing, by the secure processing device, one or more operations based at least in part on the request being authorized; generating, by the secure processing device, a modified encrypted record comprising data associated with the one or more operations performed; and transmitting, by the secure processing device to the requesting device, at least the modified encrypted record and an indication that the operation was performed. receiving, by a secure processing device from a requesting device, a request to perform an operation, the request being received in a request message comprising an encrypted record and a first dynamic value, the encrypted record comprising a set of one or more entries corresponding to one or more previously performed operations associated with a user of the requesting device; authorizing, by the secure processing device, the request using the encrypted record, a first cryptographic key (402, 604) derived from a unique key associated with an authorizing entity, and the first dynamic value, said authorizing comprising: obtaining a second cryptographic key derived from the unique key associated with the authorizing entity, wherein the second cryptographic key is obtained from the request message; generating a third cryptographic key from the first cryptographic key and the second cryptographic key; generating a decrypted record from the encrypted record utilizing the third cryptographic key, wherein authorizing the request is based at least in part on the decrypted record; aggregating a first set of entries of the decrypted record to generate a first value; and aggregating a second set of entries of the decrypted record to generate a second value, wherein the request is authorized based at least in part on the first value and the second value; obtaining a second cryptographic key derived from the unique key associated with the authorizing entity, wherein the second cryptographic key is obtained from the request message; generating a third cryptographic key from the first cryptographic key and the second cryptographic key; generating a decrypted record from the encrypted record utilizing the third cryptographic key, wherein authorizing the request is based at least in part on the decrypted record; aggregating a first set of entries of the decrypted record to generate a first value; and aggregating a second set of entries of the decrypted record to generate a second value, wherein the request is authorized based at least in part on the first value and the second value; performing, by the secure processing device, one or more operations based at least in part on the request being authorized; generating, by the secure processing device, a modified encrypted record comprising data associated with the one or more operations performed; and transmitting, by the secure processing device to the requesting device, at least the modified encrypted record and an indication that the operation was performed.